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december 2020
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Mathematics Questions and Answers December 07, 2020

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(b) A bag of marbles contains 3 yellow marbles, 12 blue marbles, and 8 red marbles. Construct a tree diagram that illustrates two consecutive picks without replacement from the bag, Make sure to indicate the probabilities along each branch and the probabilities of all 9 outcomes. (c) 80% of Mr. Newton's students are Seniors. Of all of his

Consider the data given in Activity 3 once again. Augment the data by the dummy variable "cooling tower" as given in Table 6. Build a multiple regression model to predict ln (C) by taking S and N or their natural logarithms, as well as CT, as the independent variables. Make sure to check for multicollinearity. Use residual analysis and R2 to check

need help to solve, please see attached Let f(x ) = 2 - 2x. (a) Sketch the region R under the graph of f on the interval [0, 1]. 0.5 Find its exact area ( in square units ) using geometry .square units subintervals. (b) Use a Riemann sum with five subintervals of equal length (n = 5) to approximate the area (in square units) of R. Choose the

Nannah Acel & 09/19/21 6:57 PM Question 16 This Test: 24 pow pow side Submit Test The long jump record, in feet, at a particular school can be modeled by f(x) = 19.8 +2 3 In (x+ 1) where x is the number of years since records began to be kept at the school. What is the record for the long jump 10 years after record started being kept? Round your

What is the standard score and critical values DFPS EDIT DFPS Forms DFPS Handbooks DFPS Intranet DFPS Public Website | Smart Search - DAL... Your Texas SCS-501-X3446 Foundations in Statistics 22TW3 Homework: 9-2 MyStatLab: Module Nine Question 9, 9.2.17 E Homework Part 1 of 3 Find the value of the standard score, z, and determine whether the

D Question 3 0 pts A company wants to buy new accounting software for its employees. It must decide between software A and Software B. The company will decide between the two software packages based on how quickly its employees can learn how to use the software. So, seven employees are chosen to test the software packages. The number of hours that

For the following exercises, find the equation of the tangent line to the graph of the given equation at the indicated point. Use a calculator or computer software to graph the function and the tangent line. j . For the equation x2 + 2xy 33:2 = 0, a. Find the equation of the normal to the tangent line at the point (1, 1) . b. At what other point

Please see attachment 2- Consider the function f(z) = 12 + 32 (a) Find the domain of f and the r- and y-intercepts, if any. (b) Show that f'(x) = (2+4)(x -8) (x2 + 32)2 (c) Find the coordinates of any stationary points of f. (d) Construct a table of signs for f'(x). (e) Determine the intervals on which f is increasing and the intervals on which it

Home Insert Draw Page Layout Formulas Data Review View Tell me Share Comments Calibri (Body) v 12 A" A ab Wrap Text v General Insert v "APO. Ex Delete v I v Paste BIUV OvAv Merge & Center $ ~ % " Conditional Format Cell Sort & Find & Analyze Sensitivity Formatting as Table Styles Format v Filter Select Data A12 X V fx H 1 K L M N 0 P Q R S T U V W

Help in solving this qustion. Question 14 An equilateral triangle made of metallic sheet is expanding because it is being heated. Its area A is given by has 4 square centimeters, where x is the length of one side in centimeters. Find the instantaneous rate of change in A with respect to x at the instant when x = 10 centimeters

5. Suppose you want to select 1000 New Yorkers. Given the population of each borough, what sampling techniques one could use to draw this sample? Explain. NYC has 5 boroughs. Use the 2011 population values for each borough given in the table to calculate the number of New Yorkers to be selected from each borough. See (Table 3- 1)@ population to

IncorrectQuestion 23 0 / 2 pts Scenario: A therapist wanted to examine marital happiness in couples participating in therapy at her clinic. Couples were randomly assigned to participate in individual, couples, or group therapy. She measured marital happiness using a standardized scale ranging from 0 100, with higher numbers indicating greater

Fawns between 1 and 5 months old have a body weight that is approximately normally distributed with mean=29.4kilograms and standard deviation=4.7kilograms. Let x be the weight of a fawn in kilograms.For parts (a), (b), and (c), convert the x intervals to z intervals. (For each answer, enter a number. Round your answers to two decimal places.)(a) x

Question 28 of 34 x = websites Then, compute the sample standard deviation, s. Report your answer with two decimals of precision. S : websites Next, compute the t-statistic of the test. Report your answer with three decimals of precision. t-statistic = Then, use software to calculate the P-value for the test. Report your answer with three decimals

The proportion of adult women in a certain geographical region is approximately 52%. A marketing survey telephones 500 people at random. Complete parts a through c below. a) What proportion of the sample of 500 would you expect to be women? 0.52 (Type an integer or a decimal. Do not round.) b) What would the standard deviation of the sampling

39. The changing quantities a and b are related by the equation a3b2 = 432. Find a when a = 3, b = 4 and - = 2 40. The volume of a spherical balloon of radius r is - . Find the rate at which the radius is changing when the balloon has a volume of 100 cubic inches and the volume is increasing at the rate of 2 cubic inches per second. 41. The sides

8) The distribution of salaries in the US is strongly right skewed. The central limit theorem says which of the following? (A) As we look at more and more salaries, the mean salary of our sample will get close to the mean for all salaries in our population. (B) The mean salary for any number of people has a strongly right skewed distribution. (C)

Provide an appropriate response. In one area of Russia, records were kept on the relationship between the rainfall (in inches) and the yield of wheat (bushels per acre). The data for a 9 year period is as follows: Rain Fall, x 13.1 114 16.0 15.1 21.4 12.9 9.6 18.2 18.6 Yield, y 48.5 442 56.8 80.4 47.2 29.9 740 740 76.8 The equation of the line of

Question 36 The New York City Marathon is a highly selective race. One way to gain entry into the race is to qualify based on a time from a prior-completed marathon. The NYC Marathon's organizers use this method to limit admission to the top 10% of marathon runners. If the mean completion time of all marathons is 185 minutes with a standard

statistics Need help fast GE | MINDTAP Q Search this co Assignment The University of Cincinnati Center for Business Analytics Is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium.

Suppose you are told that a company has produced widgets that have a normally distributed weight with mean of 74.5 ounces and a standard deviation of 3.1 ounces. Choose a number randomly from 60 to 90 and determine the corresponding z-score. If they consider a widget defective when it is 3 or more standard deviations from the mean, what would be

In 2017, Americans spent a record-high $9.1 billion on Halloween-related purchases (the balance website). Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are as follows. 12 66 26 65 31 36 34 45 50 14 12 98 48 32 62 24 a. What is the estimate of the population mean amount adults spend on a Halloween costume (to 2

Tutorial Exercise Two cars start moving from the same point. One travels south at 60 mi/h and the other travels west at 25 mi/h. At what rate is the distance between the cars increasing four hours later? Step 1 Using the diagram of a right triangle given below, the relation between x, y, and z is 22 = y 2 X Submit Skip (you cannot come back)

Use the intermediate value theorem to show that the function has a zero between the two numbers given. Then. use your calculator to approximate the zero to the nearest hundredth. px)=x'l 6x2 Mix2; 0.5 and 1 ..... ) Evaluate the function for the lower bound, 0.5. P(U_5} = E (Type an integer or decimal rounded to the nearest hundredth as needed}

Now there is something the employees of Delectable Delights do not know. Arthur Weasley of the Ministry of Magic has twin sons, Fred and George, who are working on perfecting the Too Long Spell for their joke shop. The spell would make things, well, too long. They wanted to test it out and used the spell on Machine #13 to see if the Too Long Spell

A college administrator wants to know how OSU students utilize different campus library resources. She decides to survey a sample of OSU students in order to make generalizations about the population of all OSU students. Suppose that, unknown to the administrator, exactly 35% of all OSU students visit at least one campus library on a weekly basis.

Using the table of values given, determine the equation of the function that would model this data. (a) x f ( x) 36 2 0 3 -32 -54 5 -60 6 -44 Question 4 (4 points) Listen Determine if the following polynomial functions have even or odd symmetry, or neither. Justify your reasoning. (a) f (ac) = -203 + 320 (b) f ( 2c) = 20* + 20 2 + 20 Och f (ac) =

c. Let X1, ..., X, be i.i.d. random variables from normal distribution with mean , and variance o? and Y1, . ... Ym be i.i.d. random variables from normal distribution with mean #2 and variance o2. Find the likelihood ratio test for testing Ho : /1 = #2, ? = 0? against all alternatives. The two samples are independent. d. Let X, , ..., Xjo be

9. A check of a large city revealed that 28% had pools, 42% had ceiling fans, and 21% had both pools and ceiling fans. i) Make a two-way table. ii) Find the probability of having either a pool or a ceiling fan? iii) Find the conditional probability of having a pool among the ceiling fan owners. iv) Find the conditional probability of having a

Part 2 After you have completed your analysis of Part 1, the park service understands the models better but is trying to decide which model describes the population of the deer the best. In an old file they have found that the deer population was 800 eight years ago, 600 eleven years ago and 500 fifteen years ago. Using this information decide

How do you label and graph a scatter plot based on these data( use water depth meters instead of km) Location Water Depth (km) Water Depth (m) Tsunami Velocity (m/s) East Pacific Rise 1.4 1400 117 Mid Atlantic Ridge 2.5 2500 157 West coast of Japan 1.75 1750 131 Java Sea (Indonesia) .046 46 21 South China Sea 5.6 5600 234 Mariana Trench 11 11000

8. Coming into this week's league play, Lisa has bowled 56 games and has an overall average of 163 pins per game. a. What would Lisa have to average for her three games tonight to raise her overall average to 165? b. Given her past performance, is Lisa likely to raise her overall average two points tonight?10. In evaluating crime rates between two

I would prefer the answers typed out but if you MUST use paper be clear and neat . Answer each question correctly and briefly explain how you got the answer. Use your knowledge of Lines and Planes specifically for this! Thanks! 1) a) Determine the symmetric equations for the line through P(5, 6, 10) and parallel to the line with equation = (6, 1,

2) Use your boxplot and the summary table below to write a paragraph assessing the shape of the distribution of the pH level of the rain data. Is the shape of the sample distribution very left skewed, very right skewed, or fairly normal? Make sure you fully justify your answer if you want to receive full credit in this question. (Points: 10)

pleas fix this answer put the correct answer, thank you. x - 1 Check the Asymptotes box. Use the a, b, and c-sliders to graph the function f(x) = What is the domain of f(x)? x- +x- 2 Use the interactive figure to find your answer. Use the left and right arrow keys to move along a slider as needed. Click here to launch the interactive figure. The

Question 22 During the test, you may use your math notebook for reference, your gr may not enter other parts of the course, other websites, or receive outs zero score and possible disciplinary action as well as an F for the course. Link to Desmos Graphing Calculator: https://www.desmos.com/calculat Evaluate the definite integral. sin (3t) dt Submit

Please help as soon as possible!!! No work needed D(x) is the price, in dollars per unit, that consumers are willing to pay for x units of an item, and S(x) is the price, in dollars per unit, that producers are willing to accept for x units. Find (a) the equilibrium point, (b) the consumer surplus at the equilibrium point, and (c) the producer

II. TRUE OR FALSE. Write T if the statement is true, and F if it is false. (5 points) 1. To find out how varied are the opinions/reactions of Filipinos towards the vaccination against Covid - 19, standard deviation will be utilized. 2. The greater the standard deviation, the more spread out the distribution is. 3. If the individual observation

I need help to do these four problems. Find for the circle x2 + y = 25 and evaluate Find the slope of the tangent line to the graph of 2 xy? + xy = y when y =1. at the point (3, -4). # Ans: 1 Ans: Find the slope of the tangent line to For the circle centered at the origin with radius 4 and cos(xx) = x y at the point (-1, 1). equation x2 + y2 =16,

It is inferred that the tip amount has a relationship with value of a dinner bill. The collected data is presented in the table. Conduct a regression analysis. X - Bill ($) 33.46 50.68 87.92 98.84 63.60 107.34 Y - Tip ($) 5.50 5.00 8.08 17.00 12.00 16.00 . What is the value of bj? A. 0.1486 B. -0.3462 C. 0.1467 D. -0.1730 . Find the predicted tip

The depth of a keyway is an important part quality characteristic. Samples of size n = 5 are ta ken every four hours from the process and 20 samples are summarized as follows: Sample 3 r 1 139.7 1.1 2 139.8 1.4 3 140.0 1.3 4 140.1 1.6 5 139.8 0.9 6 139.9 1.0 7 139.7 1.4 8 140.2 1.2 9 139.3 1.1 10 140.7 1.0 11 138.4 0.8 12 138.5 0.9 13 137.9 1.2 14

| School ID: 404194 ONOY, ROXAS CITY Second Semester Midterm Assessment in Statistics and Probability - 11 Name. Date. Score. I. Identification. Directions: Identify if the given random variable is a Discrete or Continuous. Write your answer on the Int space provided before each number. 1. Scores of a students in quiz. 2. How long students ate

13. Given the graph of f(x) below, graph g(x) = f(x - 2) +1 . State the value of g(3) HN WA 1 2 -X 3 4 5 6 g(3) =14. If f(x) = 3x + 4 and g(x) = x2 - 2, give expressions in simplest form for a) fog(x) b) f(x).g(x) c) f(x) .g(x)

A random sample of 16 pharmacy customers showed the waiting times below (in minutes). 22 14 25 15 19 15 17 15 21 16 23 16 29 21 22 21 Click here for the Excel Data File ook Find a 90 percent confidence interval for , assuming that the sample is from a normal population. (Round your standard deviation sk answer to 4 decimal places and t-value to 3

1. A local health clinic sent fliers to its clients to encourage everyone to get a flu shot. In a pilot follow-up study, 159 clients were randomly selected and asked whether or not they actually received a flu shot. A client who did receive a flu shot was coded Y=1 and a client who did not was coded Y=0. In addition, data were collected on their

Set up, but do not evaluate, an integral for the area of the surface obtained by rotating the curve about the xaxis and the y-axis. y = tan1(x), 4 S x 5 6 (a) about the X-axis 6 /( )dx 4 (b) about the yaxis H )d" Set up, but do not evaluate, an integral for the area of the surface obtained by rotating the curve about the xaxis and the y-axis. X =

1. James Cameron was interested in how survival of the Titanic disaster varied by passenger group. Help him out by determining if survival varies by passenger group (a=0.05)). In addition to your ultimate decision, include the chi-square statistic, degrees of freedom, and chi-square critical value. Passenger Group Survived Perished First 202 123

In a game, a player is required to toss a die and a pick a card from a box containing 2 cards marked 2, and 3. Let R be minimum of the pair of values on the die and card that are picked. If the two values are equal, R will be 0. R will be the payment in dollars to the player. R= min(value on die, value on card) For example: R=min(50,60) = 50 (the

Acquisition of Language The percentage p ( t ) of children who can speak in at least single words by the age of months can be approximated by the equation. 14 p ( t ) = 100 ( 1 t 4.48 12 , 200 ) ( t 8.5 ) a. Give a technology formula for p .

Data given below are on the adjusted gross income a and the amount of itemized deductions taken by taxpayers. Data were reported in thousands of dollars. With the estimated regression equation y = 4.68 + 0.16x, the point estimate of a reasonable level of total itemized deductions for a taxpayer with an adjusted gross income of $52,500 is $13,080.

Question 5 (Mandatory) (1 point) \\/ Saved Skew lines are lines that are not parallel but lie in parallel planes. True False Question 1 (Mandatory) (1 point) ~/ Saved There is no symmetric form for the equation of a plane. ' True False Question 2 (Mandatory) (1 point) \\/ Saved The direction vector of a line is an indicator of its slope. True

The number of barrels of oil produced from North Dakota oil wells since January 2014 is estimated to be B = 2905800214\" million barrels, wheret is in months since January 2014.1 Estimate the relative rate of change of oil production in March 2015 using the following values of At. Round your answers to three decimal places. (a)At = 1 The relative

Challenge activities CHALLENGE ACTIVITY 7.2.1: Confidence intervals for population proportions. Critical values for quick reference during this activity. Confidence level Critical value 0.90 2* = 1.645 0.95 2* = 1.960 0.99 2* = 2.576 377222.2338710.qx3zay7 Jump to level 1 In a poll of 1000 randomly selected voters in a local election, 21 voters

Answers:A. No, the proportion of seeds that germinate are not dependent on the seed type because the p-value=0.0132B. No, the proportion of seeds that germinate are not dependent on the seed type because the p-value=0.0265C. Yes, the proportion of seeds that germinate dependent on the seed type because the p-value=0.0265D. Yes, the proportion of

I need help with these homework problems #41 A watch manufacturing firm needs to design an open - topped box with a square base. The box must hold 32 cubic inches. Find the dimensions of the box that can be built with the minimum amount of materials. #22

What is the Center Line of the control chart? Round answer to three decimal places. Fogarty Inc. has decided to use an RChar't to monitor the changes in the variability of their 5630 pound bolls. The quality control manager randomly samples 9 bolts and measures the weight ofthe sample (in pounds} at 16 successive time periods. Table Control Chart

For questions 1, 2, 3, 5, 6, 7, 8 I only need the correct answers. I am not looking for an explanation. For question 4 I need the correct answer with a brief explanation. I will give a good rating, thank you! Question 1: There are 3 boxes below that you will have to choose the correct answer for. In a survey of 650 randomly selected U.S. males

Calculus 2 No need for explanation Just answer it directly with solutions with graph lege of Engineering Education (CFE) ( SY. 2021-2022 (CEE) / 2021-2022 1STSEM (CHE) //CEE103_1786_2021-2022_ISTSEM-SEM_CEE / Exam 3(1786);2021-202211STSEM SEM Question 2 Not yet answered Marked out of 5.00 P Flag question Determine the volume of the solid obtained

Based on historical data, your manager believes that 28% of the company's orders come from first time customers. A random sample of 124 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is less than 0.3? Note: You should carefully round any z-values you calculate to 4 decimal

Please solve and show all work. So I can learn how to solve these equations. Week 9: Chapter 7 - Central Limit Theorem (Sums) Progress saved Done Score: 0/12 0/3 answered B VOCO : its Question 1

The engine displacement (volume) is measured in cubic centimeters. We wish to estimate 4 50); the population median displacement, using (50), the sample median. We will conduct bootstrapping to do so. a) Why can't we simply use the Central Limit Theorem, along with a normal or t distribution, to create a confidence interval for #( 50)? Lisp ? Be

PASULAT PO SA PAPER PARA MADALI MASUNDAN, SALAMAT PO!! Directions: Solve the following problems. Show your complete solutions. 1. The GPA of randomly selected Grade 11 students at ABC University is 1.45 and it's population standard deviation is 0.56. a. Find the 98% confidence intervals for the GPA of the entire Grade 11 students. b. Find the 95%

answer each one eatinity.com/assessments/oved Too 3.1 Defining the Derivative OPEN ITEMS INFO LEARNING RESOURCES CONCEPT REVIEW 6. Help me with this # 1 Consider the curve y = x + 3x + 6. (a) Find the slope of the secant line to the curve through the points P = (4, 34) and Q = (4 + h, (4 + h) + 3(4 + h) + 6). The slope of the secant line is (b)

SCENARIO: A nurse is concerned about patients' abilities to maintain a healthy lifestyle after medical interventions- This concern focuses on the patients' inabilities to change and maintain healthy behaviors to reduce recurrence of the disease- The nurse believes that the patients may have individual characteristics that explain why some appear

2x On cherche a construire un conteneur rectangulare sans couvercle d'une capacite de 12 m , avec la longueur de sa base egale au double de sa largeur, comme dans la figure ci-dessus. Le materiau utilise pour la base coute 30 dollars le metre carre, et celui utilise pour les parois coute 10 dollars le metre carre. On veut minimizer nos couts. (a)

Problem 3. We perform a hypothesis test H0 : u = 0 vs a 75 0 on the mean of a normal population . The sample size is n = 25, the sample mean is E = 0.04 and the sample standard deviation is s = 0.1. The null hypothesis is rejected if the P-value is less than 0.02. (a) What is the conclusion of the test if the variance of the population is unknown.

A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed below are the amounts of mercury (ppm) found in tuna sushi sampled at different stores in a major city. Construct a 99% confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in

Question 4 Submit Qu QUIZ IVI This Quiz: 5 pts possible Resume later The population P. in thousands, of a small city is given by the following function, a) Find the growth rate. where t is time in years. Answer parts a) through c) The growth rate is 400t P(t) = 312 + 4 b) Find the population after 11 yr. AP The population is after 11 years 60-

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 55 ounces and a standard deviation of 6 ounces. Use the Empirical Rule and a sketch of the normal distribution in order to answer these questions. a) 95% of the widget weights lie between and b) What percentage of the widget

Please write neatly, thank you. 13. Thelinesy=xandy=4xintersect at {2,2}. {a} Show that the lines are perpendicular. {b} Graph the lines together on your calculator using the "window\" [10, 1D] x [10,]D]. {c} Why do the lines not appear to be perpendicu- lar on the calculator display? {d} Find a suitable window so that the lines do appear

10. [0.12/0.22 Points] DETAILS PREVIOUS ANSWERS BBUNDERSTAT12 8.1.020.MI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Gentle Ben is a Morgan horse at a Colorado dude ranch. Over the past 8 weeks, a veterinarian took the following glucose readings from this horse (in mg/100 ml). 95 86 B2 105 101 108 84 91 The sample mean is x = 94.0, Let x be a

Problem 1. (1 point) Problem 4. (1 point) Solve the system. Solve the system. x + 8y = 17 10x - y =-5 8x + 5y = 18 2x + 9y = -47 X =. X =_ Answer(s) submitted: Answer(s) submitted: (incorrect) (incorrect) Problem 2. (1 point) Problem 5. (1 point) Solve the system. Solve the system. 2x - 5y = 12 3 -3 3x +7y =-11 X X =_ X =_ y =_ Answer(s)

Can you please help me solve this calculus question. I tried my best but I don't understand. I think I got d2x/dt^2 correct but that's about all I did right. 13.) For t 2 0 a particle is moving along a curve so that it position at time t is (x(t), y(t)). If it known that hat al = sin '(1-2e ' ) and dy = 4t for t 2 0. dt 1+1 a.) Find the horizontal

Answers please, will rate quick Use the method of Lagrange multipliers to solve this exercise. I want to fence in a rectangular vegetable patch. The fencing for the east and west sides costs $8 per foot, and the fencing for the north and south sides costs only $4 per foot. I have a budget of $192 for the project. what is the largest area I can

As an entry-level statistician of a cellphone company, you are tasked to gather preliminary data that will be used to determine whether the battery charge of cellphones in your area lasts 18 hours - the population mean. You are required to do the following tasks: 1. Interview 15 SHS students any strand & level and ask them how long their cellphone

Descriptive quiz3 N Mean Std. Deviation Std. Error 95% Confidence Interval for Mean Minimum Maximum Lower Bound Upper Bound 1 33 7.24 1.324 .230 6.77 7.71 5 10 2 39 6.72 1.538 .246 6.22 7.22 4 10 3 33 7.82 1.976 .344 7.12 8.52 4 10 Total 105 7.23 1.677 .164 6.90 7.55 4 10 Results & Interpretation ANOVA quiz3 Sum of Squares df Mean Square F Sig.

on or before the reflected schedule on the Appendices. See Rubrics in Essay on page no. 1. The Associate Dean of the College of Business and Management of JRMSU-Katipunan wants to randomly choose thirty students out of the fourth year students to attend a leadership training. There are 150 fourth year students in the College. Using a table of

D Question 80 3 pts There are many programs that seek to change behavior. One way to assess the effect of a program is to give a pretest, administer the program, and give a posttest. To really prove the lasting value of the program, however, a researcher must gather follow-up data some months later to see if the improvement seen at posttest has

Your Dest Submission for each question part is used for your score. 1. [9.09/9.09 Points] DETAILS PREVIOUS ANSWERS BBBASICSTATSACC 7.2.017.MI.S. MY NOTES ASK YOUR TEACHER Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Enter a number. Round your answer to four decimal places.) The area to

Looking at all employee records, the standard deviation of salary is known to be approximately $4,000. We wish to construct a 95% confidence interval for the mean salary of male employees. Forty-eight male employees are surveyed. The sample mean is $62,500. The sample standard deviation is $3,500. (See video link below if needed.) x= _ = n=

need some help with probability. Question 6 (2 points) Given the following probabilities, algebraically determine if Events A and B are: . mutually exclusive or non-mutually exclusive . independent or dependent PA = P(B = 0.55 PAUB' = 0.28 Prepare your answer on paper, take an image and post your file in the answer box provided. You can use the

You may need to use the appropriate technology to answer this question. To test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, a chemical company obtained the following data on the time (in minutes) needed to mix the material. Manufacturer 2 20 28 19 25 25 20 25 30 24 22 33 17 (a)

Why do we want to minimize the sum of square errors to find a line of best fit? (SELECT ALL THAT APPLY) C] We don't want to minimize the sum of square errors, we want to minimize the sum of the square residuals Because we want to get the line that is closest on average to all of our points, and this is a good way to do so C] Because we need to

/42986?module_item_id=2191188 Question 23 You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 90% confident that you estimate is within 3% of the true population proportion. How large of a sample size is required?

A psychologist studied self-esteem scores and found the data set to be normally distributed with a mean of 70 and a standard deviation of 5. Part A**What raw score cuts off the bottom 33% of this distribution? Steps: Q61: What is the z-score that cuts off the bottom 33% of this distribution? Q62: What is the raw score that cuts off the bottom 33%

Two way tables- Marginal and conditional probabilities 6. According to the consumer Electronics Manufacturers Association, 31% of all U.S households have a fax machine and 47% have only personal computer. Suppose 19% of all U.S. have both a fax machine and a personal computer. i ) Compute the (2-way table)joint probability matrix. Use proper

The following data was obtained from a sample of counties in southwestern Pennsylvania and indicate the number (in thousands) of tons of bituminous coal produced in each county and the number of employees working. # of employees (x) 110 731 1031 20 118 1162 103 752 Tons (y) 227 5410 5328 147 729 8095 635 6157 Find the Regression Line Equation, in

3) What are the differences between correlation coefficient and regression coefficient? A study was [10.0] conducted among the households in a small city to determine what variables, if any, are related to the food expenditure of a household. Suppose the researcher wants to develop a regression model to predict the household level food expenditure

a. Find E (x) and interpret its value. E (X) = (Type an integer or a decimal. Do not round.) Interpret the value of E (x) . Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. If many random samples of 96 transformers are taken, then the mean of the sample variances

statisticsss STATISTICS AND PROBABILITY Q4_WEEK 1 (SY '21 -'22) UNDERSTANDING HYPOTHESIS TESTING I. Directions: State the null and alternative hypothesis in words and in symbols: 1. The school record claims that the mean score in Math of the incoming Grade 11 students is 18.5. The teacher wishes to find out if the claim is true. She tests if there

Only need answers! Thank you! 1. [or Poles] DETAILS PREVIOUS ANSWERS OSCALCI 3.1.803. Line the equation gin John And that tops of the BEE on the value s; and fy for the function ; = fr) Or+ 4 2. [-47 Paint] DETAILS 65CALC1 3.1.805.TUT.SA. Y - H Like the equation gu bills to find the dogs of the secant line between the valuem s, and a, far them 12

The following scatterplot shows the mean annual carbon dioxide (CO2 ) in parts per million (ppm) measured at the top of a mountain and the mean annual air temperature over both land and sea across the globe, in degrees Celsius (C). Complete parts a through h on the right 2 16.800- - X - X Residual plot Regression output 2 16.650- Mean Temperature

A student goes to the library. Let events B=B= the student checks out a book and D=D= the student check out a DVD. Suppose that P(B)=0.49PB=0.49, P(D)=0.45PD=0.45 and P(D|B)=0.05PD|B=0.05. Round each answer to fourdecimal places. (a) Find P(B)PB'. Enter the exact answer. P(B)=PB'= (b) Find P(DANDB)PDANDB. Enter the exact answer. P(DANDB)=PDANDB=

Question 1: Let r(t) : (sin 75, 2 cos t, it) parameterize a curve C in R3. (a) Sketch the curve C over 0 g t g 7r. (b) Find the normal and tangential components of acceleration as functions of parameter t. Determine the normal and tangential components of acceleration at times 20,152 gandtzw. (b) Determine the curvature of the curve C as a

Q g. Fri Apr 29 7:48 PM | My P X & MyLab and Master X Assignments x Math 11 - Test x 8482367¢erwin=yes Periodic Table.jpeg c Quiz: fall 2021 Ch... Math 11 -Spring 2022 judith Gonzalez 04/29/22 7:48 PM Men Women A study was done on body temperatures of men and women. The results are shown in the table. Assume that the two samples are

The following table lists median house values (in $) for the 50 states as reported by the U.S. Census Bureau in 2010. Construct the frequency distribution for the median house values. Use six intervals with widths of 0 < x 100,000, 100,000 < x 200,000, etc. a-2. Which interval had the highest frequency? multiple choice 1 0 < x 100,000 100,000 < x

show process pls 2. (1 mark) For each of the following infinite series, (i) decide whether or not it converges or diverges (ii) state clearly the reason for your answer (Alternating Series Test, Geometric Series Test, Divergence Test, Ratio Test, other reason) and show all steps to justify the use of the Test used. 52+1 (a) Z An (n + 1) n=0 ( b )

2. Bladder Cancer Data. An exercise in the book Pagano and Gauvreau (2000) 2 features data on 86 patients who after surgery were assigned to placebo or chemotherapy (thiopeta). Endpoint was the time to cancer recurrence (in months). Variables are: time, group (0 - placebo, 1- chemotherapy), and observed (0 - recurrence not observed, 1 - recurrence

Year Probability Stock returns Stock returns BCDE FGHI 1 0,25 0,18 0,28 2 0,20 0,15 0,24 3 0,35 0,18 0,20 4 0,20 0,24 0,18 From the data above, James owns 2 stocks and has the same probability return distribution Calculate: 1). Expected Return E(R) , BCDE Shares and FGHI Shares 2). Variance and Standard Deviation of BCDE Stock and FGHI Stock,

A) A jar of juice came out of the refrigerator at 8 a.m. and placed on the kitchen counter. The temperature of the refrigerator is 4C and that of the kitchen is 22C. An hour later, the temperature of the juice jar is 9C. Let T(t) be the temperature of the pot t hours after 8 h. 1)Assuming that the temperature of the pot obeys Newton's cooling law,

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