11. [Objective: Calculate a data value from a percentile or z-score] Suppose that it is reported in the news that

8 % of the people living and working in Kokomo feel “very satisfied” with their commute time to work.

What is the travel time to work that separates the bottom 8% of people with the shortest travel times and the upper 92%? Round to the nearest tenth of a minute.

a. 17.2 minutes

b. 13.8 minutes

c. 10.7 minutes

d. None of the above

12. [Objective: Calculate a data value from a percentile or z-score] The normal model *N ( *58,21 ) describes the distribution of weights of chicken eggs in grams. Suppose that the weight of a randomly selected chicken egg has a z-score of -2.01. What is the weight of this egg in grams? Round to the nearest hundredth of a gram.

a. 31.20 grams

b. 15.80 grams

c. 28.50 grams

d. 38.10 grams

13. [Objective: Understand the binomial model] Which of the following characteristics are **not** required for the binomial model?

a. The probability of success and of failure must be equal.

b. There are a fixed number of trials.

c. The trials must be independent.

d. The probability of success is the same at each trial.

14. [Objective: Understand the binomial model] Determine which of the given procedures describe a binomial distribution.

a. Record the number of songs downloaded in a month for a group of 30 randomly selected college students.

b. Observing that ten out of the next twenty customers at a grocery store checkout use a credit card given that the probability of using a credit card is 0.58.

c. Surveying customers entering a sporting equipment store until a customer responds that he or she was shopping for a bicycle.

Use the following information to answer questions (15)-(18). Suppose that the probability that a person books an airline ticket using an online travel website is 0.72. For the questions that follow, consider a sample of ten randomly selected people who recently booked an airline ticket.

15. [Objective: Calculate probabilities using the binomial model] What is the probability that exactly seven

out of ten people used an online travel website when they booked their airline ticket? Round to the nearest thousandth.

a. 0.035

b. 0.480

c. 0.998

d. 0.264

16. [Objective: Calculate probabilities using the binomial model] What is the probability that at least nine out

of ten people used an online travel website when they booked their airline ticket? Round to the nearest thousandth.

a. 0.065

b. 0.183

c. 0.935

d. 0.857

17. [Objective: Calculate probabilities using the binomial model] What is the probability that no more than

three out of ten people used an online travel website when they book their airline ticket? Round to the nearest thousandth.

a. 0.733

b. 0.115

c. 0.007

d. None of the above

18. [Objective: Calculate the mean and standard deviation using the binomial model] Out of ten randomly

selected people, how many would you expect to use an online travel website to book their hotel, give or take how many? Round to the nearest whole person.

a. 7 people, give or take 1 person

b. 8 people, give or take 2 people

c. 7 people, give or take 2 people

d. 3 people, give or take 4 people

19. [Objective: Calculate probabilities using the binomial model] Five identical poker chips are tossed in a hat

and mixed up. Two of the chips have been marked with an X to indicate that if drawn a valuable prize will

be awarded. If you and three of your friends each draws a chip (with replacement), what is the probability that at least one of your group of four will win the valuable prize? Round to the nearest thousandth.

a. 0.870

b. 0.130

c. 0.758

d. None of the above

20. [Objective: Understand expected value and the binomial model] Suppose that the probability that a person

between the ages of 19 and 24 buys at least one tabloid magazine per week is 0.115. If 500 randomly

selected people between the ages of 19 and 24 were asked “Do you buy at least one tabloid magazine per week?”, would you be surprised if 45 or more said yes to this question? Why?

a. Yes, 55 would be an unusually small number of people given the known probability of 0.115.

b. No, 55 is within the expected range of people.

c. Yes, 55 would be an unusually large number of people given the known probability of 0.12.

d. Cannot be determined with the given information.

courseworkresearch.com is an online academic writing platform that provides extensive assistance to graduate school students as they work through their research projects, papers and dissertations. courseworkresearch.com gives students access to experienced professionals who can provide the help they need in a timely and efficient manner. The service offers a wide range of services, including editing, proofreading, formatting, researching and more that can give students the confidence they need to write the perfect paper or dissertation for their chosen subject matter.

Services Offered by courseworkresearch.com

courseworkresearch.com offers a wealth of different services designed to make research projects easier for graduate school students. These include editing, proofreading, formatting and researching services, all tailored specifically for graduate-level studies such as PhDs or Master’s degrees in any field from business administration to engineering or even psychology – all with the aim of helping busy students find success in their academics without having to sacrifice other important commitments like family time or work hours towards earning a living wage outside of college hours.

The Benefits of Using courseworkresearch.com

Using courseworkresearch.com gives you access to experts from all over the world who are highly qualified and experienced in helping graduate-level students to complete successful projects in various fields quickly and efficiently – something that would otherwise be difficult, if not impossible, given tight deadlines associated with most Ph.D./Master’s degree programs today. Moreover, using this platform makes it easier for students to keep up with multiple research tasks simultaneously since there are so many different experts available on tap at any one time – no longer will you have to put off studying one topic while focusing on another because of lack of resources! Additionally, having access to professional editors, proofreaders, but also formatters means that quality control standards aren’t sacrificed when finishing major pieces – since these individuals understand what makes up good academic writing better than anyone else and can offer guidance on how best one should go about making improvements along those lines. Finally, there is also an added cost-saving benefit associated with utilizing coursework research essays compared to hiring an independent contractor (which could potentially run into thousands depending on length/complexity).

This service allows users only pay for what students need, which tends to be much lower overall because customers pay per hour rather than project basis, thus resulting to greater financial flexibility, especially for those just starting out postgraduate studies looking to conserve some pennies here there whenever possible!