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Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 8.1 - Problem 29
Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 8.1 - Problem 29

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# ?Watching Television The amount of time Americans spend watching television is closely monitored by firms such as AC Nielsen because this helps determi

ISBN: 9780134133539 240

## Solution for problem 29 Chapter 8.1

Statistics: Informed Decisions Using Data | 5th Edition

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Problem 29

Watching Television The amount of time Americans spend watching television is closely monitored by firms such as AC Nielsen because this helps determine advertising pricing for commercials.

(a) Do you think the variable “weekly time spent watching television” would be normally distributed? If not, what shape would you expect the variable to have?

(b) According to the American Time Use Survey, adult Americans spend 2.35 hours per day watching television on a weekday. Assume that the standard deviation for “time spent watching television on a weekday” is 1.93 hours. If a random sample of 40 adult Americans is obtained, describe the sampling distribution of , the mean amount of time spent watching television on a weekday.

(c) Determine the probability that a random sample of 40 adult Americans results in a mean time watching television on a weekday of between 2 and 3 hours.

(d) One consequence of the popularity of the Internet is that it is thought to reduce television watching. Suppose that a random sample of 35 individuals who consider themselves to be avid Internet users results in a meantime of 1.89 hours watching television on a weekday. Determine the likelihood of obtaining a sample mean of 1.89 hours or less from a population whose mean is presumed to be 2.35 hours. Based on the result obtained, do you think avid Internet users watch less television?

Step-by-Step Solution:

Step 1 of 5) Watching Television The amount of time Americans spend watching television is closely monitored by firms such as AC Nielsen because this helps determine advertising pricing for commercials. (a) Do you think the variable “weekly time spent watching television” would be normally distributed If not, what shape would you expect the variable to have (b) According to the American Time Use Survey, adult Americans spend 2.35 hours per day watching television on a weekday. Assume that the standard deviation for “time spent watching television on a weekday” is 1.93 hours. If a random sample of 40 adult Americans is obtained, describe the sampling distribution of, the mean amount of time spent watching television on a weekday. (c) Determine the probability that a random sample of 40 adult Americans results in a mean time watching television on a weekday of between 2 and 3 hours. (d) One consequence of the popularity of the Internet is that it is thought to reduce television watching. Suppose that a random sample of 35 individuals who consider themselves to be avid Internet users results in the meantime of 1.89 hours watching television on a weekday. Determine the likelihood of obtaining a sample mean of 1.89 hours or less from a population whose mean is presumed to be 2.35 hours. Based on the result obtained, do you think avid Internet users watch less television

Step 2 of 2

##### ISBN: 9780134133539

The full step-by-step solution to problem: 29 from chapter: 8.1 was answered by , our top Statistics solution expert on 01/15/18, 03:19PM. Statistics: Informed Decisions Using Data was written by and is associated to the ISBN: 9780134133539. The answer to “?Watching Television The amount of time Americans spend watching television is closely monitored by firms such as AC Nielsen because this helps determine advertising pricing for commercials.(a) Do you think the variable “weekly time spent watching television” would be normally distributed? If not, what shape would you expect the variable to have?(b) According to the American Time Use Survey, adult Americans spend 2.35 hours per day watching television on a weekday. Assume that the standard deviation for “time spent watching television on a weekday” is 1.93 hours. If a random sample of 40 adult Americans is obtained, describe the sampling distribution of , the mean amount of time spent watching television on a weekday.(c) Determine the probability that a random sample of 40 adult Americans results in a mean time watching television on a weekday of between 2 and 3 hours.(d) One consequence of the popularity of the Internet is that it is thought to reduce television watching. Suppose that a random sample of 35 individuals who consider themselves to be avid Internet users results in a meantime of 1.89 hours watching television on a weekday. Determine the likelihood of obtaining a sample mean of 1.89 hours or less from a population whose mean is presumed to be 2.35 hours. Based on the result obtained, do you think avid Internet users watch less television?” is broken down into a number of easy to follow steps, and 224 words. This textbook survival guide was created for the textbook: Statistics: Informed Decisions Using Data, edition: 5. This full solution covers the following key subjects: . This expansive textbook survival guide covers 88 chapters, and 2422 solutions. Since the solution to 29 from 8.1 chapter was answered, more than 211 students have viewed the full step-by-step answer.

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