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december 2020
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Mathematics Questions and Answers December 07, 2020

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What is the Pearson's correlation coefficient for X and Z? (Rxz) An economist is interested in studying the relationship between length of unemployment and job seeking activity among white-collar workers. He interviews a sample of 12 unemployed accountants about the number of weeks they have been unemployed (X) and the number of weeks they have

Due at 11:30pm! Please help! NOTES PRACTICE ANOTHER Producers' Surplus The manufacturer of a brand of mattresses will make x hundred units available in the market when the unit price is p = 50 + 70e0.06x dollars. (a) Find the number of mattresses the manufacturer will make available in the market place if the unit price is set at $150/mattress.

08433&spry -&drc=1&q1 471035&ciql 0&dab Q&fromQB_0 0:00 Time Left:1:55:49 Michael Geling: Attempt 1 The table below lists the results of a survey which explored the food expenditures of seven families. The survey was developed to determine if there was a correlation between monthly income and food expenditure. Which variable is the dependent

4. Figure below shows an example three layered-formation. Note that the notation is slightly changed 'om the one used in class: the stresses in layers are denoted S.- (i=1,2,3), and the total fracture (crack) length is 2a. The length of the pay zone is h=b2+b3 (note that in general case, center of the crack is not necessarily aligned with the

Spring 2022 Home Announcements Assignments Discussions Grades Modules Quizzes Syllabus Zoom Course Evaluations Buy Course Materials Research Help l I) E canvas.sfu.ca C Question 3 5 pts Error is discussed throughout statistics and used in many different contexts, for instance sampling error, the standard error, a type I error, a Type II error, or

1. Nonparametric methods Table 1 Pod weight (g) from inoculated (1) and uninoculated (U) plants I U 1.76 0.33 1.45 0.85 1.03 1 1.53 1.54 2.53 1.01 1.96 0.77 1.79 2.21 1.21 0.92 Mean 1.658 1.079 sd 0.468 0.565 n 8 8 1) What nonparametric test can be used to compare the distribution of pod weight for inoculated vs. uninoculated plants? (1 point) 2)

3. According to a leading travel website, the amount of time people take to buy an air ticket is normally distributed with population variance 9 minutes. (a) (b) (C) A random survey of 10 people was taken and it was found out that the sample average of time it took for them to book the tickets was 48 minutes. Calculate a 95% condence interval of

In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0 represents the worst possible life and 10 represents the best possible life. The responses were normally distributed, with a mean of 5.5 and a standard deviation of 2.1. Answer parts (a)-(d) below. Question content area

Need Help! Question #1. Consider f(x) = v3x + 1 and h # 0. i. Compute the average f(x + h) - f(I) ii. Use the previous (simplified) average to compute f'(x) = lim f( x th) - f(x) h-+0o h iii. Use the obtained limit/derivative to compute f'(1). Question #2. Consider the function f(x) given in Figure 1. Determine the points in which f is not

Account Overview - Acc X Gradebook X zy Section 6.3 - ONT/275T x course hero log in - Sea X Course Hero * > nEls login - Search X Speaker Broadcast - Pre x + X C n & https://learn.zybooks.com/zybook/ONT_275T_55318202/chapter/6/section/3 G S Bookmarks b Suggested Sites Imported From IE | Other favorites =zyBooks My library > QNT/275T: Statistics

Find the Maclaurin series for f(I) Write the series in summation notation. 1+ 24 Express the definite integral dr as a series in summation notation. 1+ 14 Use the result in part (b) and the Estimation Theorem for Alternating Series to approximate t 10 de of dr with error less than 10-10 = using the fewest possible num 1+ 14 10 Jo ms of the series.

E] v ( > 0 tarletonrinstructureeom C [I] + 33 HW 2 u Course Hero Hw2.pdf PSYC 2317: Statistical Methods for Psychology Tarleton State University Unit 2 Homework 1. For a set of observations with a mean of 65 and a standard deviation of 12, nd the zscore for each of the following raw scores: X=80 X=56 X=92 X=42 X=73 X=48 2. For a set of

Please help Homework: Homework 3.4 You look over the songs in a jukebox and determine that you like 16 of the 52 songs. (a) What is the probability that you like the next four songs that are played? (Assume a song cannot be repeated.) (b) What is the probability that you do not like the any of the next four songs that are played? (Assume a song

Please help. I am not sure that I know this correctly. Part A: Determine the mapping rule for the function, f(x) = - 5(2) 7+2 + 2. (z, y) -+ (a . ztb, cy+d) The values of a , b , c and d are,Part B: The point (0, 1) on the graph y = 2" will be translated to the point on the graph of f(z)

Pls help D Question 8 7.7 pts The volume of a cone is given by V - - mr2 h, where r is the radius of the circular base of the cone and h is the height of the cone. If the radius and the height are both increasing at the rate of 0.5 centimeters per second, then find in cubic centimeters per second when r = 6 cm and h = 9cm . O 54 O 24TT O 10TT O

question 1 The foot length of males in a city follow a normal distribution with a population mean of 27 cm and a standard deviation of 2.1 cm. (a) Find the probability that a randomly selected male from the city has a foot length between 25 cm and (28 +120) cm. Correct your answer to 4 decimal places. (6 marks) (b) Find the probability that the

Please use the attached image (5 points) Use the half-angle formulas to find the exact value. Simplify the answer so that you don't have fractions within the square roots and so that you don't have square roots in the denominator of a fraction. Include support/justification for why your answer is positive or negative. sin (62.50) = _

If you wanted to see if there is a difference among students who took Statistics by their age groups (18-20 years old, 21-22 years old, and 23+ years old) and whether their employment status affects their GPAs, what test would you use? O factorial ANOVA one-way ANOVA independent samples t-test paired samples t-test

1. Finding probabilities for standard normal distributions(z)4.85 & 4.872. Finding z-values 4.88, question a, b, d and e only. 4.89, Question a and b only. Finding probabilities for general normal distributions(x) 4.93Finding z scores using the formula z= (x-u)/o( sigma) 4.91 Exercises 4.84-4.116 Learning the Mechanics 4.93 Suppose x is a normally

Please answer the questions below ASAP Question 9 A drug is administered every 4 hours in dose of 10 mg. The drug is neutralized at an exponential rate with decay rate constant k = 0.1. Not all the drug is neutralized before the next dose is administered. Let - A(t): denote the amount of drug in the patient's system at time t hours, o 3\": denote

The role of the analyst is beyond running predictive models on a given data. Analyst in that case are like researchers, who need to formulate research question, define methodology (passive data analysis or running experiments a.k.a. focus groups studies), conduct data acquisition, analyze data, and then produce the recommendations. Directions: In

Please answer ASAP but please make sure they are right. So important for me. I will highly consider giving thumbs up Questions: Question 6 A factory has installed a new process that will produce an increased rate of revenue (in thousands of dollars per year) of R0) = 300 0 .5 3+1 where t is time measured in years. The new process produces

Data Set 3 -Lincolnville School District Bus Data Engine Type Maintenance Odomete ID Manufacturer (0=diesel) Capacity Cost Age r Miles Miles 10 Keiser 14 4646 5 54375 11973 396 Thompson O 14 1072 2 21858 11969 122 Bluebird 55 9394 10 116580 11967 751 Keiser 0 14 1078 22444 11948 279 Bluebird 0 55 1008 UINN 22672 11925 500 Bluebird 55 5329 50765

Question 10 1 pts Dave is helping his uncle Clyde move his collection of records to a new home. Clyde randomly packed the records into '12 boxes. Interested in his uncle's musical tastes, Dave randomly picks two of the boxes to look through. What type of sampling method did Dave use? 0 cluster 0 stratied O convenience 0 simple random sample 0

Assignment Submission For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the ans Assignment Scoring Your last submission is used for your score. 1. [-/4 Points] DETAILS SPRECALC7 2. T.501.XP. Let f(x) = Vx+1 (a) Evaluate. f(8) = f(6) = f(a - 1)

Identify the class width, class midpoints, and class Full data set boundaries for the given frequency distribution. Daily Low Temperature Frequency Daily Low Temperature Frequency ( OF) ( OF) 35-39 55-59 40-44 60-64 ANN 45-49 65-69 50-54 What is the class width? (Type an integer or a decimal.) What are the class midpoints? (Use ascending order.

9-18 Find the inverse of each function. 9) y = log , 3" Condense each expression to a single logarithm. log , a 10) log, b + 4log , c+- 2 Use the properties of logarithms and the logarithms provided to rewrite each logarithm in terms of the variables given. 11) log , 11 = U 12) log, 4 = U log , 10 = V log , 10 = V log , 4 = W log, 11 = W Find log

3) WCC is moving its Mount Vernon Extension Center to a new location in December.The college would like to take a survey of people to get their feelings about the move.There are currently 32 classes with 23 students and 1 instructor each, at the current site.(a)One professor suggests doing a cluster sample to obtain a sample of 48 people for the

(d) (8 points) The width of the confidence interval of part (b) is approximately 13.04 miles. How many samples would we need to take to obtain a 90% confidence interval of at most the same width? width? How many samples would we need to take to obtain a 99% confidence interval of at most the same (e) (8 points) Suppose the university previously

(d) What is the derivative of 13(3)? L'(x) = (e) What is the critical number of L(:c}? critical number = (f) The dimensions of the garden that minimize the length of fencing are: ft by ' it. In the rst space, input the length of the fence that is parallel to back of the house. (5 points) A landscaper is to build a rectangular ower garden that has

Week New Cases Cumulative Cases 1 49 49 2 191 240 3 369 609 4 331 940 5 333 1273 6 571 1844 7 742 2586 8 955 3541 9 1029 4570 10 883 5453 11 682 6135 12 512 6647 13 412 7059 14 381 7440 15 343 7783 16 256 8039 17 247 8286 18 142 8428 19 82 8510 20 71 8581 There is yet another type of model of growth we can consider for this data set: logistic

1. There is a study in which people are randomly assigned to either a cram session study condition, distributed study condition, or no study condition. They were then assessed on math exam scores. a. What are/is the independent variable(s) b. What are/is the dependent variable(s) 2. What is the statistical notation for the standardized mean

Please answer with detailed explanation 1. An economist believes that average weekly food expenditure of households in City 1 is more than that of households in City 2. She surveys 35 households in City 1 and obtains an average weekly food expenditure of $164. A sample of 30 households in City 2 yields an average weekly food expenditure of $159.

Suppose f is a differentiable function with f(7) =1 and f'(7) =-1. Let y=f(x) . tanxte . cosx. Then the value of y at x =1 is... Olten O-1ten 01-eT 0 -1-em O eTAt what points on the curve y: col: :1: is the tangent line parallel to the line 3;: a: ? Choose the correct xvaluels) below. \fLet f(x) = sin x , g(x) =et and h(x) =25 . If s=hofog, what

Hello Professor, Can you help me with this question? i just need in present in excel. I really appreciate your help! Q1(11). Upload ONE excel file including your solutions for all parts. For the given random sample (excel with data attached) 11.3,8.6,14.8,13.5,9.9,16.8,12.3,15.2,15.7,12,8.9, 14.1,17.8,11.9,13.1,13.7,15.3,11.2,10.7,14.8,14.7,

O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Anna Confidence interval for the population mean: Use of the t... 0/5 Espanol A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He tests 13 children selected at random and finds that their mean attention span is 30 minutes with a standard deviation of 4

Score: 0/37 0/37 answered cements Question 24 0/1 pt 9 2 ents A manufacturer of rechargeable laptop batteries markets its batteries as having, on average, 500 charges. A consumer group decides to test this claim by assessing the number of times 30 of their laptop batteries can Ions be recharged and finds the average is 497, with a standard

I need help answering what the 98% interval be. Reference: My Homework A company surveyed 2200 men where 1078 of the men identified themselves as the primary grocery shopper in their household. a) Estimate the percentage of all males who identify themselves as the primary grocery shopper. Use a 98% confidence interval. Check the conditions first.

D Question 9 - Week 6: Ho X Content Week 05 Quiz (page 6 of X MATH 232 Week 05 Quiz X Homework Help - Q&Af x + X - C myonline.norwich.edu/mod/quiz/attempt.php?attempt=138347&cmid=869187&page=5 GAIO ... Functional Medicin.. 80 Billing Coding Adva... 1 Tricare Ed Welcome - Edfinan... A My AHIMA )|Mail - Rosalez, Meli.. CLA APA Sample Paper /... P

Unless specified, all approximating rectangles are assumed to have the same width. Evaluate the upper and lower sums for 8 (9 - 8x) dx 0(c) Consider the following theorem. b If f is integrable on [a, b], then f(x) dx = lim f(x, ) Ax , where Ax = b- and X; = a + iAx. a n - co n i=1 Use this to evaluate the integral. (d) Interpret the integral in

Consider a system of differential equations describing the progress of a disease in a population, given by (xy)=F(x,y) for a vector-valued function FF. In our particular case, this is: x = 4 4 x y 2 x y = 4 x y 2 y where x(t)x(t) is the number of susceptible individuals at time tt and y(t)y(t) is the number of infected individuals at time tt. The

Bookmarks Window Help learn.umgc.edu .com - Gmail U Quizzes - MGMT 650 9043 Statistics for Managerial Decision Making (22... MGMT 650 - UN Janai-sophia Ottey: Attempt 1 "HO: Mean > value" is 1. Increases the chance of a type I rejected if: error and increases the power of a test Doesn't have a match 2. If either test statistic "HO: Mean s value"

Please help. I'll be sure to leave a thumbs up! Thank you. Figure 6 is a complicated graph. Take about five minutes to study the graph taking notethat the axis on the left side is on a different scale compared to the axis on the right sideof the graph.(i) What does each circle represent?(ii) Does the radius of each circle mean something?(iii) What

Does a new diet plan help people lose weight? Twenty people were weighed before starting a 3-month diet program and again after they completed the program. The change in weight was found by taking, before weight minus after weight. If the test statistic was 3.45, what is the correct conclusion? O The average weight loss for all people on this plan

Suppose that the proportion of all American adults that fit the medical definition of being obese is 0.23. A large medical clinic would like to determine if the proportion of their patients that are obese is higher than that of all American adults. The clinic takes a simple random sample of 30 of their patients and finds that 9 patients in the

The following data refers to the OAC average grades of students being accepted into first year of several Ontario universities. Grade Distribution of New 1st Year Students University 60 - 70 70 - 75 75 - 80 80 - 85 85 - 90 > 90 Brock 5.8 22.1 26.7 26.0 13.1 6.3 Guelph 0 0.2 27.6 37.9 21.4 12.9 McMaster 0.1 10.5 24.2 32.4 19.7 13.1 Queen's 0 0.2

A random sample of 20 purchases showed the amounts in the table (in $). The mean is $48.14 and the standard deviation is $21.56. 41.41 43.92 74.23 a) Construct a 90% confidence interval for the mean purchases of all customers, assuming that the assumptions and conditions for the confidence interval have been met. 41.41 24.79 87.63 b) How large is

In rare diseases, most "positive" tests are actually false positives, because no medical test is 100% accurate. Enzyme immunoassay tests have a 99.7% probability of a positive result when HIV antibodies are present (sensitivity), and a 98.5% chance of a negative result when no HIV antibodies are present (specicity). The prevalence of HIV/AIDS in

(2) Multiple choice calc questions, will give helpful review. please help! A region bounded by f(2:) = x/a: + Z , y = O, x = -3, and x = 0 is shown below. Find the volume of the solid formed by revolving the region about the x-axis. 4-3-2- 123456 -2 3 4 A region bounded by f(x) = -x + 5. y = 2. and x = 0 is shown below. Find the volume of the

Find the Taylor polynomial P4(x) centered at x = 4 for the function f(x) = 32 x. a) O 64 + 8(x - 4)-- 2 + (x - 4)3 5 16 512 (X - 4)4 b) 0 64 + 8(x - 4)+- (x - 4)2 + 16 (X - 4)3 5 + 512 X - 4 ) 4 c) ( 64 + 8(x - 4)-(x - 4)+ OO / W (x - 4)3 15 64 (X - 4)4 d) ( 64 + 4(x - 4)--(x - 4)+ 1 5 32 (x - 4)3 128 ( x - 4)4 e) ( 64 - 8(x - 4)-7 (x - 4)2 1 16

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 129.2- cm and a standard deviation of 1.1-cm. For shipment, 6 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is less than 129.8-cm. P(M

binreq01 Sampling is done from a small population of size 221 without replacement. In order to use an approximated binomial distribution on the number of successes in the sample, what must to be the maximum sample size? Answer must be a whole number QUESTION 15 2 po biprob05 A university finds that 0.2 of students taking an Intro to Philosophy

Direction Choosefivevodyou fordingicdthelox Witedbundheredatedvarkorickes thatcan youthkondationtothevachyoudose Wearave inthepxepored Box No. 1 Knowledge doubt Facts Opinion claim arguments truth Prepositions beliefs conclusions VIAISNOTE Direction Readtheconversation blowvardaver thefdlovingquestion Viteyouranswer on the Love's QArd SharDipole

Question 19 (1 point} The following data show the height [in inches] of sample of students. 6? ?0 ?1 6'1 ?1 6? 69 68 66 65 6? 6? 64 ?1 69 6? 6? 64 62 69 Create a stem leaf plot for these data and then select all of the correct statements about these data based on your plot. [:J 50% of students have height less than 65 inches [3 The maximum height

The given curve is rotated about the y-axis. Find the area of the resulting surface. y = 2 - x, 05 x54 -605.22 X. Enhanced Feedback Please try again. For finding the surface area S of a curve rotated around the y-axis, use the formula S = 2xx ds , where ds = \\ 1 + dy 1x dx. Use substitution to evaluate the integral. Need Help? Read It

I have no clue why my answers are not working. Can someone help? X zy zy ) 9 8 1 6 5 3 D G B ETF 3 3 4 1 1 1 9515 w G W G * + X -> C testdrive.cas.ou.edu/webwork2/1914_Taylor_FA21/3.3/12/ Apps YouTube String (Java SE 14 &... TD Advanced Stock Or... The ultimate guide... TD Basic Stock Order T... fx Position Size Calcul.. TD What is Leverage in...

A weight loss program claims that program participants have a mean weight loss of at least 12 pounds after 1 month. You work for a medical association and are asked to test this claim. A random sample of 30 program participants and their weight losses (in pounds) after 1 month is listed in the table below. Assume the population standard deviation

ABC News/Washington Post conducted a public opinion poll during 01/20/20 to 01/23/20. A total of 880 respondents participated in the survey. Question 18 of the survey was "Do you think the Senate should call new witnesses to testify at the impeachment trial), or do you think it should (decide the impeachment case without calling new witnesses to

Please fill in the blank TeVaughn Williams 04/25/22 9:04 PM HW Score: 22.22% 2 of 9 Homework: Section 10.2 . . ' > t Homework Questlon 3, 10.2.5): pom 5 (:9 Points: 0 of 1 For 50 randomly selected speed dates attractiveness ratings by males of their female date partners (3:) are recorded along with the attractiveness ratings by females of their

please help, i only have 1 question left and ill leave a great review!!!? 1. Reduce the following expression to a single function of one angle: cos(45 + A) + cos(45 - A). A. -2 sinA B. V2 sin A C. 2COSA D. -V2COSA 2. What are the extreme values of y = 2cos W/x A. 1 and -1 B. 3 and -3 C. 3 and - 3 2 D. 2 and -2TT 3' Construct one period of the

A very large study showed that aspirin reduced the rate of first heart attacks by 44%. A pharmaceutical company thinks they have a drug that will be more effective than aspirin, and plans to do randomized clinical trials to test the new drug. What is the null hypothesis the company will use? Let p represent the reduction in the rate of first heart

FIODICIII LIST Next Problem Section 7.3: Problem 12 (1 point) The region bounded by y = 8/(1 + x ), y = 0, = = 0 and z = 3 is rotated about the line a = 3. Using cylindrical shells, set up an integral for the volume of the resulting solid. The limits of integration are: and the function to be integrated is: Note: You can earn partial credit on this

*Unlike prior assignments, you will NOT be submitting a Word document and Excel file. Instead, you will need to work through this assignment and provide your answers in the M7 Assignment (Special Quiz Format) quiz. I recommend filling out your answers on this sheet before taking the quiz and keeping it on hand for reference. You will have 2

A mass is hanging from the ceiling on a spring and oscillating (forever, and without friction). At its highest point, the mass is 12 cm from the floor, and at its lowest point, the mass is 6 cm from the floor. At t= 0, the mass is at its equilibrium and moving downwards, and a single period takes 0.5seconds. HINT: Graph your y(t) to check your

Stuck please help solve Chapter 6: Probability 1. A jar contains 20 red marbles, of which 10 are large and 10 are small, and 30 blue all of which 10 are large and 20 are small. If 1 marble is randomly selected from the jar. a. What is the probability of obtaining a blue marble? b. What is the probability of obtaining a large marble? c. What is the

The graph of f is shown in the figure. The shaded region A has an area of 1.5, and f(x) dx = 4.5. Use this information to fill in the blanks. (Round your answer for part (f) to four decimal places.) B ( 2 ) 1 0 " (x ) ox = ( b ) (A(x ) dx = ( c ) If( * ) I dx = (P) " - 2 1 ( x ) dx = (e ) [2 + f ( x ) ] dx = (f) The average value of f over the

Worksheet - General Solution to Systems of Linear Equations 1. Person 1 - Solve the following system of linear equations for 1:. ax+by=p cx+dy=q by doing the following. 0 Multiply the top equation by d. 0 Multiply the bottom equation by b 0 Add the two new equations. 0 Solve for a: Person 2 - Solve the following system of linear equations for y.

4) What would be the probability of finding one of your three assistants at a souvenir stand at a gym? 5) You were lucky enough to find one of your assistants at a souvenir stand at a gym, when they said they would be at a gym or mall. What is the probability that another one of your assistants is also at souvenir vendor at a gym

Suppose Canadian home-owners owe an average of $194,000 on their mortgages. Assume that mortgage debt is normally distributed in Canada with a standard deviation of $94,000. Standard Normal Distribution Table a. Albertans are reported to owe $243,400 in mortgage debt, much higher than the Canadian average. What is the probability of randomly

I need help on this question Coast Guard Station Able is located L = 220 miles due south of Station Baker. A ship at sea sends an SOS call that is received by each station. The call to Station Able indicates that the ship is located N55"E; the call to Station Baker indicates that the ship is located $60 E. Use this information to answer the

The frequency distribution is incorrectly constructed. State the reason why. Frequency, f C: Class limits overlap O A class has been omitted 0 Class width is not uniform For the stem-and-leaf plot below, find the range of the data set. Key: 2 7 =27 Stem Leaves 25 2 166789 1 7 78 8999 3 11 123445 3 6 667889 4 0 1 O 29 X 5 O 12 0 53 O 41The

Weight (pounds) 4.6 Comparing Salaries The scatterplot shows the salary and year of first employment for some professors at a college. Explain, in context, what the negative trend shows. Who makes the most and who makes the least? (Source: Minitab, Student 12, "Salary.") 100 90 80 (thousands of dollars per year) Salary 70 60 50 40 1985 1990 1995

5: Suppose that the function graphed below is f'(x), the derivative of f(x). Find the Select the correct choice below and. if necessary, ll in the answer box(es) to locations of all relative extrema of f(x), and tell whether each extremum is a cemplete your choice. relative maximum or minimum. ' ' O A; The function f(x) has a relative minimum at x

A city public affairs officer claims that the average car in their area sells for more than the 40 th percentile of your data set. Using the data, below run a hypothesis test to determine if the claim can be supported. Use alpha = .05 to test your claim. Price $40,000.00 $15,500.00 $22,350.00 $37,200.00 $32,000.00 $35,000.00 $35,000.00 $41,000.00

please help this probability and statistics questions wit clear steps and details, thankss ( R=3) Question 3 20 marks Answer this question using the following information: P(0

0 of 1 Point Part 1 of 3 Over the course of a decade, a certain police department issued 156.6 thousand speeding tickets. (a) Construct a relative frequency distribution of the males who received tickets. (Round The ages of the males and females who received tickets are shown below. Use this information to answers to three decimal places.) answer

I need help on the third part Coast Guard Station Able is located L=220 miles due south of Station Baker. Aship at sea sends an 808 call that is received by each station. The call to Station Able indicates that the ship is located N55E: the call to Station Baker indicates that the ship is located 360E. Use this information to answer the questions

Consider 4 flips of a coinThe heads probability of each is p = 0.05 the randomn variable that is the total number of heads (a value between and 4), Y be the random variable that is the number of heads in the last flip (can be 0 or 1). What is the probability that simultaneously X = 1 and Y = 1 Consider 4 flips of a coin. The heads probability of

A newspaper regularly reports the air quality index for various areas of Southern California. A sample of air quality index values for Pomona provided the following data: 28, 43, 59, 49, 46, 56, 61, 49, and so. (a) Compute the range and interquartile range. range interquartile range (b) Compute the sample variance and sample standard deviation.

Homelessness * ED Visit Crosstabulation Count ED Visit No ED Visit ED Visit Total Homelessness "Not Homeless 57 9 86 Homeless 14 10 24 Total 71 19 Chi-Square Tests Asymptotic Significance Exact Sig. (2- Exact Sig. (1- Value (2-sided) sided) sided) Pearson Chi-Square 8.303" 1 004 Continuity Correction 6.705 010 Likelihood Ratio 7.599 1 006 Fisher's

please help I tried to solve this and kept doing it wrong!!! - -- ----- --- a\\} ---r----u- 2. [10 marks] At timet = 0, a tank contains 100 litres of gas with 30 litres of oil mixed in it. Suppose another mixture containing 1 litre of oil per 9 litres of gas is being added to the tank at a rate of r litres/min, and that the gas [oil mixture at is

A) Wildlife conservationists studying grizzly bears in the United States found that the mean weight of 25 adult males was 600 pounds with a standard deviation of 90 pounds. Construct and interpret a 98% confidence interval for the mean weight of all adult male grizzly bears in the United States. Assume that the weights of all adult male grizzly

. Question 8 [0/3 pts 9 3 A coffeeshop in Nashville determines that it can sell 3000 cups of coffee at a price of $2.00, but for every $1 increase in the price, their sales will decrease by 3300 cups and for every $1 decrease, their sales will increase by 3300 cups. A function giving the revenue earned when the price of coffee is & dollars per cup

Need help and good explanation for c and d K PB B Blackboard Learn W 7.6 - Normal Approximation - MTH 265 Spring_. 2 Watch It Player | Cengage Learning Cengage Digital Learning 0.5/1 Points] DETAILS PREVIOUS ANSWERS BBBASICSTAT8 7.6.008.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER In the following problem, check that it is appropriate to use the

Question 12 A coffee shop currently sells 490 lattes a day at $2.50 each. They recently tried raising the by price by $0.25 a latte, and found that they sold 30 less lattes a day a) Assume that the number of lattes they sell in a day, NV , is linearly related to the sale price, p (in dollars). Find an equation for NV as a function of p. N(p) = b)

Collin wants to enclose a rectangular field with three internal partitions as shown. If there is 11100 feet available for fencing, what dimensions will produce the greatest area? Note that the internal partitions also require fencing. length i width The width should be feet and the length should be feet. (Round your answers to two decimal places)

There are two types of pumps and we want to determine if one is longer lasting then the other. We have been using both types of pumps in the plant for a few years and have complete time to failure data (time from installation to failure). In this simple example all of the pumps from both brands have failed. Brand X (failure time in months) 342 6 2

Part 1:Probability Review 1. Suppose that a popular grocery store tells customers the probability they will have to wait in line for at least 3 minutes is 0.25. What does the grocery store mean by "at least"? 2. Return to Question 1.If the grocery store tells customers the probability they will have to wait in line for at most 5 minutes is 0.65,

(3 points) The functions f and g and their tangent lines at (4, 0) are shown in the figure below. (3 points) If f' is continuous, f(6) = 0, andf'(6) = 15, evaluate is shown in blue, g in black, and the tangent line to f is - 1 (x - 4), and is graphed in red, and the tangent line to g is lim f(6 + 3x) +f(6 + 5x) _ -0.5(x - 4), and is graphed in

Formulate the null and alternative hypothesis for the following. 1. The school principal surveyed 150 teachers to find out if the salary significantly increased over the past 10 years Ho - There is no significant increase in the salary of teachers for the past 10 years. Ha - There is a significant increase in the salary of teachers for the past 10

Round all answers to 4 decimal places. a. A bag contains 8 red marbles, 7 blue marbles, and 10 green marbles. If a marble is drawn from the bag, replaced, and another marble is drawn, what is the probability of drawing first a real marble and then a green marble? C] b. A bag contains 7 white marbles, 10 green marbles, and 8 blue marbles. If two

A home improvement company is interested in improving customer satisfaction rate from the 53% currently claimed. The company sponsored a survey of 120 customers and found that 70 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is different than the claim by the company. What is the test

M09 Homework - Hypothesis Testing With One Sample Progress saved Don Score: 9/10 9/10 answered Question 10 0/1 pt O You wish to test the following claim (a) at a significance level of a = 0.02. Ho:u = 57.8 Ha: H

what is a),b), and c)? The Arie Company manufactures widgets. The distribution of widget weights is bolt-shaped. The widget weights tiave a mean of 48 ounces and a standard deviation of 1 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule. Suggestion: sketch the distribution in orcor to arewar these questions. 2) 657, of the

Assume the height of a previous MATH class follows a normal distribution with Value = 69 inches and Standard deviation = 4 inches. Answer the following questions (draw a normal sketch and shade the region that represents what the following questions are asking for. Then, use Minitab to find the value of the shaded region) Find the probability that

See attachment below Determine which variable is the likely explanatory variable and which is the likely response variable. The explanatory variable is the miles per gallon and the response variable is the weight. The explanatory variable is the weight and the response variable is the miles per gallon. The explanatory variable is car and the

Which one of the following is a critical point for the function f($) = |a:2| ? O f(':) has no critical points. 0 a: = 2 03:0 The graph of m) is given below. Which of the following points are a critical point of x)? Choose all correct answers. [33: [32: [33:4 [33:4 Suppose f: [53,033] > R is a function with no absolute maximum on [a ,b]. Which of

34,35,37,38 34. (1 point) 37. (1 point) Cars arriving for gasoline at a Shell station follow a Poisson The lifetimes (in months) of two types of lightbulbs are in- distribution with a mean of 7 per hour. dependent Exponential variables with means 1/1.00 and 1/0.75 A. Determine the probability that over the next hour, only respectively. one car

Hi I sent this question in before but the explanation was hard to understand because of handwriting, could you help please with explanation on paper please Task 9 A company is required to fence off the area around a robot arm to comply with health and safety law. They have 750m of fencing available The task is to: Find the maximum area they can

7. A therapist specializing in family counseling measures the relationship between partners and marital satisfaction. Husbands and wives rated how satisfied they were in their marriage using a 7-point rating scale ranging from 1 (not satisfied at all) to 9 (very satisfied). Using the hypothetical data given in the following table, compute the

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