Mathematics Questions and Answers December 07, 2020

Question 11 (1 point) Solve the given applied problem. In a particular classroom with 24 students, the rate y at which a rumor spreads is related to the number of people x who have heard the rumor according to the expression y= 0.3x(24- x). Determine how many people will have heard the rumor when the spread of the rumor is at its greatest. -88 O

# Minutes Worked/ Week X # Visits to The Mill/Year Y 394 25 972 75 349 25 349 65 593 35 275 40 254 45 156 20 248 75 You are hired to better understand the demographics of patrons at The Mill. The marketing team wants to know--are our customers hard-nosed workers or sorta "freeloaders"? Using a convenience sample of local Lincoln citizens, you are

.. 32. 33. 37. 39. 41. Determine the subgroup lattice for Zu- Determine the subgroup lattice for sz q, where p and q are distinct primes. . Determine the subgroup lattice for 23- 35. Determine the subgroup lattice for Zn", where p is a prime and n is some positive integer. . Prove that a nite group is the union of proper subgroups if and only if

Suppose 38% of recent college graduates plan on pursuing a graduate degree. Twenty three recent college graduates are randomly selected. a. What is the probability that no more than five of the college graduates plan to pursue a graduate degree? (Do not round intermediate calculations. Round your final answer to 4 decimal places.) b. What is the

Could use help working through The depth (in feet) of water at a dock changes with the rise and fall of tides. The depth is modeled by the function 11' Tn Di :3. t 2 (} 5111(6 + )+ where t is the number of hours after midnight. Find the rate at which the depth is changing at 5 am. Round your answer to 4 decimal places. l l

stacked ) and filled with a different color for each year Add meaningful axis and legend labels and a title to this graph . (Consider using the the function ' guides ( ) ' to change the legend title . ) Change the scale on the y axis so that values are printed as numbers with commas and not using scientific notation . (See the help for the * *

Help 100 people were surveyed to see their preference for chocolate candy bars among 5 brands. Use Chi-Square to test the data at the 005 significance level. What is the expected distribution? What is the null and alternative Hypotheses? Reece's Snickers Hershey Bar Payday M&Ms Actual observed data: Reece's Snickers Hershey Bar Payday M&MS a 25

1. K4] Determine the indicated term for each sequence. a) 19 5 11 12' 4 12 , .. find ts (arithmetic) b) t, = -3, t, = -5t,_, + 6 find t. 2. K4] For a geometric sequence t4 = -12 and to = 12 288. Determine an expression for t. .3. K4] An arithmetic sequence is 10, 8, 6, ..., -350. Determine the number of terms in the sequence AND determine the sum

A psychologist is interested in the level of anxiety for adolescents, the middle aged, and seniors. She recruits three samples and gives them a test that measures anxiety, with 1 being low anxiety and 10 being high anxiety. The group data are as follows: Adolescents Middle Aged Seniors M 1 = 1 M 2 = 5 M 3 = 6 X 2 = 356 n = 5 n = 5 n = 5 G = 60 T 1

Problem Description A door-to-door magazine salesperson has the following historical sales record. If the salesperson talks to the women of the house, there is a 15% chance of making a sale. Furthermore, if the salesperson convinces the woman of the house to purchase some magazines, the relative frequency distribution for the number of

The minimum number of subintervals using the trapezoidal ru Round up to the nearest whole number.) The minimum number of subintervals using Simpson's rule is Round up to the nearest even whole number.)3 Estimate the minimum number of subintervals to approximate the value of I85in (x + Bldx with an error of magnitude less Than 3x10 \"1 using [II a.

Question 1 (1 point) If f(x) = sec(t) e* then f '(x) equals O a) sec(t) tan(t) Ob) sec(t) ex - ex sec(t) tan(t) O d ex sec(t) tan(t) O d) sec(t) ex e) None of the above

Let f(x) = (x - 3)+ 4. Use a graphing calculator (like Desmos ) to graph the function f. a. Determine the interval(s) of the domain over which f has positive concavity (or the graph is "concave up"). Preview b. Determine the interval(s) of the domain over which f has negative concavity (or the graph is "concave down"). Preview c. Determine any

5 \fa. Find p. (Round to two decimal places as needed.) b. For a random sample of n = 3 observations from this distribution, find the sampling distribution of the sample mean. Type the answers in ascending order for x. (Type Integers or simplified fractions.) c. Find the sampling distribution of the median, M. of a sample of n = 3 abservations

Please answer the questions below Question 1 The difference quotient of the function f(x) = Vx+3 in the simplest form is ( a) Vx+3 ( Vxth+3+\\x+3 ) O b ) Vx+ 3 O c) Vxth+3 ( Vxth+3+ Vx+3 ) O d) ( Vxth+3+ 1x+3 ) Oe) none of the above

After a polution event in an esturary, we want to estimate proportion of shell fish that are impacted by the pollution in the water. What sample size do we need to ensure our 95% confidence interval is no more than +/-0.02 given we know from previous events the proportion is around 0.3? O 2401 O 2017 O 897 O 2035

O Points: 0 of 1 Suppose a simple random sample of size n = 49 is obtained from a population that is skewed right with u = 79 and o = 28. (a) Describe the sampling distribution of x. (b) What is P (x > 86.6) ? (c) What is P (x $ 69.6) ? (d) What is P (74.6

Problem 6.1, 15 points. Consider the following decisional problem DP. Let G be a cyclic group of prime order m and let g, q be generators of G. Consider the experiments associated with an adversary A: Experiment ExPG,9,q DP-1 ( A) Experiment ExPG,g,q DP-O(A) x Zm x Zm; y Zm X

PLEASE HELP ME ANSWER THIS QUESTION!ADDRESS ALL THE STEPS AND ANSWER EACH PART ACCORDINGLY! Locate the critical points of the following function. Then use the Second Derivative Test to determine whether they correspond to local maxima, local minima, or neither. f (x ) = - x+12x2+2 What is(are) the critical point(s) of f? Select the correct choice

Looking an apartment in a diverse city like Seattle is exciting but also nerve wracking. The tool you learn in class can be helpful here. The problem sets provide you opportunities to apply the statistical concept to real-world applications that emphasize why we care about this. You also have a chance to use statistical software to handle data and

LAJ In a city with three high schools, all the ninth graders took a Standardized Test, with these results: High School Mean score on test Number of ninth graders Glenwood 82 270 Central City 95 315 Lincoln High 72 180 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 83 . Of course, that

1. A control chart for the number nonconforming is to be established, based on samples of size 400. To start the control chart, 30 samples were selected and the number nonconforming in each sample determined, yielding P30 i=1 di = 1200 where di is the number of nonconforming in sample i. (a) What are the UCL and LCL of the np chart? [Hint: First,

Suppose 3 students are selected from a group of 18 students to form a team. How many ways can this team be formed if one of the team members will be assigned the role of team leader. Answer:Suppose X is a discrete random variable with the following discrete probability distribution. X 2 4 5 P(X) 10.3 0.5 0.2 Find the mean of the random variable X.

Please answer the questions below Question 1 The difference quotient of the function f(x) = Vx+3 in the simplest form is ( a) Vx+3 ( Vxth+3+\\x+3 ) O b ) Vx+ 3 O c) Vxth+3 ( Vxth+3+ Vx+3 ) O d) ( Vxth+3+ 1x+3 ) Oe) none of the above

An archaeologist encounters a collection of twenty skeletons during a dig. He uses modern dating tools to assign an approximate age to each skeleton (is. he can figure out how old the person was when they died). He records the following ages: 11,4, 6, 9, 1, 5, 12, 8, 20, 17, 3, 5, 16, 11, 2, 3, 1, 1, 19, 6 Assuming that the population was

1.What hypothesis is being tested when using a t test? Null hypothesis Test hypothesis Data -based hypothesis Sample mean hypothesis 2.Use the following statistic to determine the statistical significance of the paired-sample t test: ANOVA Significance R 2 Linear value One-Sample Test Significance Sig. (2-tailed) 3.Use the following statistical

25a and 25bthx 25. For each function below, identify the value of & that makes the function continuous: x2+2x-15 (a) f : R -+ R given by f(x) = x-3 x 2. 2e3x * (c) f : R -+ R given by f(x) = x 0. 26. If they exist, evaluate the following asymptotic limits: [2726 + 24x-17-51 * (a) limr-too 9726_27217-5 ] " * (b) lime--co - xsin (5x) ], (c) limy-too

When a poultry farmer uses his regular feed, the newborn chickens have normally distributed weights with a mean of 62.5 oz. In an experiment with an enriched feed mixture, ten chickens are born with the following weights (in ounces). 65.9 66.7 68.7 65.5 64.1 65.6 65.2 67.5 62.6 66 Use the =0.05 significance level to test the claim that the mean

b. Construct a 95% confidence interval for the difference in mean salaries and explain the information the confidence interval contains. Type of problem: Other information requested: 6. AOL conducted an Internet poll and asked users to respond to the question: "Where do you live?" If a user chose to respond, he or she could choose either "urban

me Insert Draw View Help Picture Open in Desktop App Tell me what you Math 3. Two 5-year old girls, Alyse and Jocelyn, have been training to run a 1 mile race. Alyse's 1-mile time A is approximately Normally distributed with a mean of 13.5 minutes and a standard deviation of 2.5 minutes. Jocelyn's 1-mile time J is approximately Normally

A rccd.instructure.com Quiz: Exam 1 G The table above displays the scores on a quiz. (a) How many people took the quiz Question 28 3 pts A sample of n = 4 scores has a mean of M = 8. If one new score with a value of X = 3 is added to the sample, what will be the value for the new mean? (show your work) Edit View Insert Format Tools Table 12 pt

x 181 8-3 Homework: Chapter 8 (Sectic x Question 3 - 8-3 Homework: Chi x + ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%2525%252Fnewconnect.mheducation.com%252F#/activity/q.. 8-3 Homework: Chapter 8 (Sections 8.1 through 8.5) i Saved Help Save & Che 3 The highway fuel economy of a 2016 Lexus RX 350 FWD

Consider the blue vertical line shown above (click on graph for better View) connecting the graphs 3; = g(:c) = sin(:c) and y = x) = cos(4z). Referring to this blue line, match the statements below about rotating this line with the corresponding statements about the result obtained. 1. The result oi rotating the line about the xaxis is .The result

6. Medicare reimbursement regulations require no more than a 4% error rate in invoice coding from a service provider. You draw a random same of 75 invoices and, upon audit, find that there are 5 errors in the 75 invoices sampled. (a) If the true billing error rate for this service provider were no higher than 4%, what is the probability of having

15. A student loan of $100.000 at a fixed APR of 6% for 20 years nent 16. A student loan of 524,000 at a fixed APR of 7'% for 10 years US 17. A home mortgage of $400.000 with a fixed APR of 3.5% for on page? 30 years it the 18. A home mortgage of $150.090 with a fixed APR of 4% for 15 years 19. A home mortgage of $100.000 with a fixed APR of 3%

Normal 1 No Spac... Heading 1 Heading 2 Title Subtitle A Paragraph IN Styles Mission on Mars You are on the Mars mission planning team that will determine the best route for a crew to use on the first trip using the new Mars Exploration Rover (MER). This exploration mission will include traveling from the crater Bada to the crater Babkin on the

A health economist wants to investigate if people who visit their doctor more often have lower health expenditures in the long run. She thinks that regular doctor consultations and check-ups may have a preventive effect that lowers spending on prescription drugs and medical treatments. She wants to collect data on a random sample of people and run

Your friend Sam will be doing the course in the following semester. If Sam will be required to complete 6 assignments and rates his hatred of statistics as a score of 7, what is Sam's predicted stress score? Write out the equation in full and calculate the predicted score. Regression Descriptive Statistics Mean Std. Deviation N Stress 5.53 2.386

Question 2 6 pts Convert 273 into radical form. Then , show your steps and simplify (your final answer will be an integer) Select the "Insert" drop-down option in the menu below and use "x Equation" to type your answer when you need to incorporate symbols, equations, or other math expressions. Edit View Insert Format Tools Table 12pt * Paragraph

A. Use the sum and/or difference rules to find the derivative of the following functions: NO #1: f ( x ) = x 4 1 2 2 x 3 + x 2 NO #2: f ( x ) = x 1 0 0 4 x 5 0 B. Find the derivative of the following functions using the general power rule: NO#1 y = ( 1 0 x 2 + 5 x 1 ) 2 NO#2 y = ( 2 x + x 4 x ) 2 3 NO#3 y = ( x 3 4 x ) 4 3

2) The first equation is a natural logarithm, and the second equation is its derivative. 3) Does f(x) = In x have any asymptotes? If so, where? Where do you think there should be one, but there is not? 4) Explain the asymptotes using derivative f'(x) = =. How is the x rate of change of the function changing as it approaches the asymptotes? How

3.8 Take Q#3:3.1-3.4 X P Q#3:3.1-3.4 X *Course Hero C mylab.pearson.com/Student/PlayerTest.aspx?canvas_workflow_state=available&canvas_enrollment_state=active&canvas_user_id=35701&canvas_module_id= Apps School CSU Colleges Math 5-40429 $22 E Quiz: Q#3:3.1-3.4 This quiz: 23 po This question: 4 Listed below are the durations (in hours) of a simple

HW Score: 70.67%, 17.67 of 25 E Homework: homework 3.2 Question 6, 3.2.17 Part 1 of 5 points Points: 2 of 6 Save iges The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a "flipped" classroom. Complete parts (a) through (c) below. Traditional 71.9 69.2 78.3 66.8 86.3 78.3 56.3

A marriage counselor has traditionally seen that the proportion p of all married couples for whom her communication program can prevent divorce is 79%. After making some recent changes, the marriage counselor now claims that her program can prevent divorce in more than 79% of married couples. In a random sample of 245 married couples who completed

Part i A worker is selected at random. What is the probability that he lives in an urban area given that he drives to works? ? A. 600/1300 ? B. 450/600 ? C. 450/1100 ? D. 450/1300 Part ii Which of the following statements is true? ? A. Mode of transportation and residence are dependent, but they would be independent if we changed the second row of

Help! Annual high temperatures in a certain location have been tracked for several years. The coin size data (measured in millimeters) collected from each group is Let X represent the year and Y the high temperature. Based on the data shown shown below. below, calculate the correlation coefficient (to three decimal places) between X and Low Income

6:57 P WD course work - Saved . . . PROBABILITY Instructions: Choose a sampling method from those listed in bold font below. Simple Random Sampling, Stratified Random Sampling. A. Research and do a presentation on the selected method to include: i) definition of method ii) the steps involved in obtaining a sample for statistical analysis using the

A company that develops over-the-counter medicines is working on a new product that is meant to shorten the length of sore throats. To test their product for effectiveness, they take a random sample of 110 people and record how long it took for their symptoms to completely disappear. The results are in the table below. The company knows that on

Need help with part (D) Points: 0.8 of 2 Sav The weight of an organ in adult males has a bell-shaped distribution with a mean of 325 grams and a standard deviation of 30 grams. Use the empirical rule to determine the following. (a) About 68% of organs will be between what weights? (b) What percentage of organs weighs between 235 grams and 415

1)Find all rational zeros of the given polynomial function f . (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f ( x ) = 11 x 3 3 x 2 + 14 x + 16 x=? 2)Find all rational zeros of the given polynomial function f . (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f ( x )

IQ test creators would like to know if scores between two tests are significantly different. To explore, a simple random sample of test-takers is given Test A and then Test B. A summary of the data obtained from the study is given below. Assume the standard deviation for the two groups is the same. Test A Test B Mean 100.04 103.08 What are the

4. Solve Problem 8-45. The data is file "C08 Problem 8-45.xlsx". Sample Number Defective 1 3 2 4 3 6 4 4 5 7 6 11 7 12 8 9 9 4 10 5 11 9 12 10 13 3 14 4 15 3 16 5 17 5 18 6 19 7 20 15 21 13 22 12 23 16 24 11 25 17 26 11 27 9 28 6 29 5 30 8 a. Construct an np-chart for the Dennis Manufacturing Company using the data in the dataset and the np-chart

Question 4

Question 4 In the country of United States of Heightlandia, the height measurements of tenyearold children are approximately normally distributed with a mean of 56 inches, and standard deviation of 1.8 inches. A) What is the probability that a randomly chosen child has a height of less than 53.2 inches Answer (Round your answer to 3 decimal

Pick one hypotheses below, and follow the instructions specified below to explain whether causality can be established: Hypotheses to choose from: 1.Corrections officers with more years of work experience use force against inmates less frequently than corrections officers with fewer years of work experience. 2.Students who smoke marijuana have

genow.com/ilm/takeAssignment/takeAssignmentMain.do?invoker=&takeAssignmentSessionLocator=&in... A Statement of stockholders' equity Financial information related to Organic Products Company for the month ended June 30, 2019, is as follows: Net income for June $ 115,000 Dividends paid in June 25,000 Common stock, June 1, 2019 180,000 Common stock

Skills Check 5 MT 175 Name Please show all work for full credit, Circle or otherwise clearly indicate your answer to each question. Simplify all answers. Do not leave any negative exponents or complex fractions in your final answers. 1) Fill in all points that fit the following descriptions. You may have more than one point for some or all answers

The probability distribution of daily demand for cakes at a bakery is as follows: Number of Calls 16 17 18 19 20 Probability 0.3 0.3 0.2 0.1 0.1 Each cake costs the bakery $10 and is sold for $20. Cakes leftover at the end of the day are sold to a supermarket at $5 per cake. Create a simulation model to estimate the average daily profit that the

A random sample of 81 tourists in Chattanooga showed that they spent an average of $2,000 (in a week) with a standard deviation of $100; and a sample of 64 tourists in Orlando showed that they spent an average of $2050 (in a week) with a standard deviation of $144. We are interested in determining if there is any signicant dierence between the

The Jones want to save $84,000.00 in 7 years for a down payment on a house. If they make monthly deposits in an account paying 6% compounded monthly, what is the size of the payments that are required to meet their goal? (Round to 2 decimal places.) If $3,100 is deposited at the end of each quarter in an account that earns 3% compounded quarterly,

estion 9 Based on data from the National Health Survey, women between the ages of 18 and 24 have an average systolic blood pressures (in mm Hg) of 112.6 with a standard deviation of 9.59. Systolic blood pressure for women between the ages of 18 to 24 follow a normal distribution. (a) If one woman from this population is randomly selected, find the

A psychiatrist is interested in finding a 95% confidence interval for the tics per hour exhibited by children with Tourette syndrome. The data below show the tics in an observed hour for 15 randomly selected children with Tourette syndrome. 5 1 7 1 5 1 8 5 11 8 2 11 12 0 7 a. To compute the confidence interval use a ? z t distribution. b. With95%

please show work 2. (5 points) Suppose that at UNA, the average amount spent by students for cell phone service is $38.9 per month with a standard deviation 3.64 per month. Consider a group of 44 randomly selected students. What is the probability that the mean amount of their monthly cell phone bills differs from the average for UNA by more than

Answering Questions I. and II. Color Brown Red Yellow Green Orange Blue Probability 0.2 0.3 ? 0.1 0.2 0.1 I. If you randomly draw one M&M, what is the probability of drawing a Yellow candy? Do not round your answer. PtYeIlow)= II. If you randomly draw one M&M, what is the probability of not drawing a Red candy? Do not round your answer. Red

Please help In a recent survey, ice cream truck drivers in Cincinnati, Ohio, reported that they make about $280 in income on a typical summer day. The income was generally higher on days with longer work hours, particularly hot days, and on holidays. Irma follows an ice cream truck driver for five weeks. She collects the information on the

Chapter 15 ICA ~ 125% v + A Zoom Add Page Insert Table Chart Text Shape Media Comment Chapter 15 In Class Assignment 1. State which correlation coefficient (Pearson, Spearman, point-biserial, or phi coefficient) should be used given the following information: a. Both factors are interval or ratio scale. b. Both factors are ranked. c. One factor is

In Green Bay and Appleton, Wisconsin, the average height of hemlock trees is normally distributed within each city. Lilith is trying to determine if one town's trees are taller than the other town's trees before deciding where to start her tree farm. Her horticultural knowledge reveals that the standard deviation of the height of similar types of

Please select all that apply _ . Question 4, 5.1.9 HW Score: 29.63%, 2.67 - Homework. Sectron 5.1 Homework par\" of 3 0 Points: 0 011 Ted is not particularly creative. He uses the pickup line "If I could reanange the alphabet, I'd put U and I together." The random variable x Is the number of women Ted approaches before encountering one who reacts

Return Submit 3 1 point Estimate the probability of the event. Of 1107 people who came into a blood bank to give blood, 290 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will have high blood pressure. O 0.313 O 0.262 1 O 0.181 O 2 0.23 3 4 1 point Find the indicated probability. 4 On a

Return to question Baseball has always been a favorite pastime in America and is rife with statistics and theories. One study found that major league players who have nicknames live an average of 21/2 years longer than those without them. You do not believe in this result and decide to collect data on the lifespan of 30 baseball players along with

A data set is summarized in the frequency table below. Using the table, determine the number of values less than or equal to 6. Give your answer as a single number. For example if you found the number of values was 14, you would enter 14. Value Frequency 1 5 2 3 3 2 4 3 5 4 6 3 7 8 8 3 9 7 10 8 11 3

TASK 2: DERIVATIVE 1) For each of the following functions, identify which rule (the product rule, quo- tient rule or chain rule) you would use to differentiate the function. Give a 1-2 sentence explanation justifying your answer. (a) y = sin(z]/3 + 2) (b) g(x) = In(z) (c) f(x) = ed cos(2x) (2) Use the product rule to differentiate y = ear(4x -

General direction: a) State the null and alternative hypothesis for each problem. b) Set the level of significance at 5%. c) Calculate the test statistics. Write the name of the statistical test used in the computation. Support your answer from the computation in MS Excel. d) Interpret and analyze the results of the data. e) Make a conclusion.

1. A manufacturer claims that its light bulbs have a mean life of 600 hours and a standard deviation of 80 hours. Assume that the distribution of the population is a normal distribution . Round your z -scores to 2 decimal places during your calculations , then Round probability answers to 4 decimal places. a ) If you just purchased one light bulb

You now understand how to simulate the rolling of two six-sided die and how to obtain the sum of the two die values. Using the "expand.grid" function in R you calculated the possible outcomes for rolling various combinations of die such as rolling a six-sided die with a four-sided die. In this activity, you will investigate the outcomes of rolling

Solve the rational inequality. 3x - 22 20 x2 - 16 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The solution set is (Type your answer in interval notation. Use integers or fractions for any numbers in the expression.) O B. There are no real solutions.If a varies directly as m and n and

Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 99% confidence interval estimate of the mean drive-through service time for Restaurant X at dinner; then do the same for Restaurant Y. Compare the results. Click the icon to view the data on drive-through service

Show that limit n tends to infinity x ^ ( 2021 n ) / n ! = 0 for all x . 2021n Show that lim = 0 for all r E (-oo, co). n

D Question 10 1 pts What proportion of students who take Intro Stats at the University of Florida have never taken Statistics before? Is it more than half of them? A study of STA 2122 students found that 438 out of 654 students had never taken a Statistics course before. Match the following symbols with the correct answer. [ Choose ] P V parameter

Quiz 1 The graph below shows the relationship between life expectancy and infant mortality rate in a random sample of countries. Which statement is the best description of the association between these variables? Choose 1 answer: 6) Countries with higher infant mortality rates tended to have longer life expectancies. Countries with higher infant

Identify any vertical, horizontal, or oblique asymptotes in the graph of y = f(x). O State the domain of f. . . . . . Identify the equations of any vertical asymptotes. Select the correct choice below 2- and fill in any answer boxes within your choice. X 6 -4 -2 2 4 O A. x= -2- (Simplify your answer. Use a comma to separate answers as needed.) -4-

Babies born with low birth weights (less than 2500 grams) are at an increased risk for many infant diseases. Researchers in North Carolina collected data to see what variables may influence the birth weight (in grams) of a child, including whether the mother drank alcohol during pregnancy, whether the mother smoked during pregnancy, the mother's

The boxplot shown below results from the heights (cm) of males listed in a data set. What do the numbers in that boxplot tell us? 153 173.7 194 166.2 182.9 ... The minimum height is cm, the first quartile Q, is cm, the second quartile Q2 (or the median) is cm, the third quartile Q3 is cm, and the maximum height is cm . (Type integers or decimals.

A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $32 and a standard deviation of $20. Complete parts a through c below. c) Is it likely that the next 50 Sunday customers will spend an average of at least $40? Explain. Choose the correct answer below and, if necessary, fill in the answer box

Extra Sensory Perception (ESP) is a controversial ability where some people claim to be able to see things or make predictions about future events. Whether or not the existence of ESP is part of one's beliefs, the concept does pose a question that can and has been studied and analyzed using the same statistical methods you will be learning in this

4.34 Hand and Foot Length for Women The computer out- put shown below is for predicting foot length from hand length (in cm) for a group of women. Assume the trend is linear. Summary statistics for the data are shown in the table below. Mean Standard Deviation Hand, x 17.682 1.168 Foot, y 23.318 1.230The regression equation is = 5.67 + 0.998 X

E Unproctored Placement Assessment Graph the logarithmic function g (x) = log2 (x-2). To do this, plot two points on the graph of the function, and also draw the asymptote. Then, click on the graph-a-function button. Additionally, give the domain and range of the function using interval notation. (0,0) [0,0] ( Domain: X ? [0,0) -2- Range: - OO X 5

The Exponential Function: Total 7 points 1. (a) [2 points] Given that a > 0 and that f (a) = a for every r, explain why we must have the equation ah - 1 f'(x) = a lim h-+0 h (b) [1 point] Say clearly how the number e is defined. Your answer will begin: The number e is the value of a that makes ..... (c) [1 point] Combine parts a and b and explain

Question 3 (1 point) Saved Let the function M(t) denote the mass of bacteria culture (in mg) at time t days. The average rate of change of M(t) is 1.4 mg/day over the time interval [2, 7] and is 0.6 mg/day over the time interval [4, 7]. The average rate of change of M(t) over the time interval [2, 4] is 52 mg / day $7 mg / day be mg / day 4. 7 mg

Over half of all American teens (ages 12 to 17 years) have an online profile, mainly on Facebook. A random sample of 547 teens with profiles found that 327 included photos of themselves. (a) Give the 90% large-sample confidence interval for the proportion p of all teens with profiles who include photos of themselves. Large-sample Interval: to (b)

In a contingency table of observed frequencies of two variables x and y , the Chi-squared test statistic is calculated as 6. Given that there are 2 rows and 5 columns in the contingency table, which of the following statements is TRUE? A The degrees of freedom for the test is 10 B At 95% confidence level, the critical value is 18.3070 C At 95%

QUESTION 3 In December 2021, Amazon wanted to examine recent orders to better understand customer purchasing behavior. The table below is a sample of five Amazon orders and their characteristics. What type of study did Amazon conduct? (3 points) Order TOTAL TEMS GIFTS ZIP Code PRIME 326584 $129.34 4 Yes 53208 Yes 213547 $189.74 5 No 98115 No

To solve the nonlinear inequality x +6 / x-8 0 we first observe that the numbers_____(smaller value) and______(larger value) are zeros of the numerator and denominator. These numbers divide the real line into three intervals. Complete the table. Interval , , , Sign of x +6 Sign of x 8 Sign of ( x +6)/( x 8) Do any of the endpoints fail to satisfy

E Homework: Section.. Question 5, 16.7.15 HW Score: 66.67%, 4 of 6 points Points: 0 of 1 Save Let S be the cylinder x + y = a", 0szsh, together with its top, x + y sa, z=h. Let F= -8yi + 8xj + 8x k. Use Stokes' Theorem to find the flux of V X F through S in the direction away from the interior of the cylinder. . . . . . The flux of V x F outward

3. Blood is grouped into four types: A, B, AB, and O, The percent of Americans with each type are as follows: 0, 43%; A, 40%; B, 12%; and AB, 5%, At a recent blood drive at a large university, the donors were classied as shown below, 5 there sufcient evidence to conclude that the proportions differ from those stated above? :1, Find the expected

A) In the computation of the indefinite integral f sin? (3x) dx which of the following trigonometric identities is used?

Solve for the radius and interval of convergence of the power series n = 1 3 n 2 n 2 ( x 1 ) n

The distance s (inm m) above the ground for a projectile fired vertically upward with a velocity of 4[a] [a]m/s m/sas a function of time t (ins s) is given by s=4[a]t4.9t 2 s=4[a]t4.9t 2 . a=4. Simply replace the letter with the corresponding digit. Do not multiply. For example, if[a]=1 [a]=1, then4[a] 4[a]is 41. Find the answers to these

4. The sound level measured in watts per square meter; varies in direct proportion to the power of the source and inversely as the square of the distance from the HW6_2021 4 10.013 Emma Homework source, so that is given by y = kPic2, where y is the sound level, P is the source power; a: is the distance from the source, and h is a positive

E E LCDC AaBbCcDdE Normal No Spacing Heading 1 Heading 2 ements, choose Check for Updates. 4. Find the reference angle for the given angle: a. -690 b. - 10TC 3 Complete the following table. No work needed. If undefined, write "Undefined". Each empty space is worth 1 point. Angle Angle Reference sin 0 0 in radians angle, OR cos 0 0 in degrees

6. Baseball players may use eye black in an attempt to reduce glare from the sun. We want to test whether eye black increases eye sensitivity. 16 subjects were tested, both with and without eye black. Their differences in sensitivity (eye black - without eye black) were: 0.07 0.64 -0.12 -0.05 -0.18 0.14 -0.16 0.03 0.05 0.02 0.43 0.24 -0.11 0.28