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Get Full Access to Statistics For Business And Economics - 12 Edition - Chapter 3 - Problem 19e
Get Full Access to Statistics For Business And Economics - 12 Edition - Chapter 3 - Problem 19e

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# Randomization in a study of TV commercials. Gonzaga

ISBN: 9780321826237 51

## Solution for problem 19E Chapter 3

Statistics for Business and Economics | 12th Edition

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Problem 19E

Problem 19E

Randomization in a study of TV commercials. Gonzaga University professors conducted a study of more than 1,500 television commercials and published their results in the Journal of Sociology, Social Work and Social Welfare (Vol. 2, 2008). Commercials from eight networks—ABC, FAM, FOX, MTV, ESPN, CBS, CNN, and NBC—were sampled during an 8-day period, with one network randomly selected each day. The table below shows the actual order determined by random draw:

a. What is the probability that ESPN was selected on Monday, July 11?

b. Consider the four networks chosen for the weekends (Saturday and Sunday). How many ways could the researchers select four networks from the eight for the weekend analysis of commercials? (Assume that the order of assignment for the four weekend days was immaterial to the analysis.)

c. Knowing that the networks were selected at random, what is the probability that ESPN was one of the four networks selected for the weekend analysis of commercials?

Step-by-Step Solution:

Step 1 of 3

(a)

Eight commercials networks were sampled during an 8-day period, with one network randomly selected each day.

The table below shows the actual order determined by random draw:

 Networks Day ABC July 6 (Wed) FAM July 7 (Thr) FOX July 9 (Sat) MTV July 10 (Sun) ESPN July 11 (Mon) CBS July 12 (Tue) CNN July 16 (Sat) NBC July 17 (Sun)

We are asked to find the probability that ESPN was selected on Monday, July 11.

One can select any networks during an 8-day period, hence the probability that any network is selected on a particular day is

Hence the probability that ESPN was selected on Monday, July 11 is

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321826237

The answer to “Randomization in a study of TV commercials. Gonzaga University professors conducted a study of more than 1,500 television commercials and published their results in the Journal of Sociology, Social Work and Social Welfare (Vol. 2, 2008). Commercials from eight networks—ABC, FAM, FOX, MTV, ESPN, CBS, CNN, and NBC—were sampled during an 8-day period, with one network randomly selected each day. The table below shows the actual order determined by random draw: a. What is the probability that ESPN was selected on Monday, July 11?b. Consider the four networks chosen for the weekends (Saturday and Sunday). How many ways could the researchers select four networks from the eight for the weekend analysis of commercials? (Assume that the order of assignment for the four weekend days was immaterial to the analysis.)c. Knowing that the networks were selected at random, what is the probability that ESPN was one of the four networks selected for the weekend analysis of commercials?” is broken down into a number of easy to follow steps, and 156 words. This textbook survival guide was created for the textbook: Statistics for Business and Economics , edition: 12. Statistics for Business and Economics was written by and is associated to the ISBN: 9780321826237. The full step-by-step solution to problem: 19E from chapter: 3 was answered by , our top Business solution expert on 07/21/17, 05:42AM. This full solution covers the following key subjects: networks, Commercials, selected, weekend, ESPN. This expansive textbook survival guide covers 15 chapters, and 1631 solutions. Since the solution to 19E from 3 chapter was answered, more than 523 students have viewed the full step-by-step answer.

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Randomization in a study of TV commercials. Gonzaga