The mean number of hours for persons watching a tv show was 2.98 hours each day with a standard deviation of 2.66. Assume that in a sample of 40 teenagers the sample standard deviation of daily tv time is 1.9 hours, and that the population of tv watching times is normally distributed. Can you conclude that the population standard deviation of tv watching times for teenagers is less than 2.66?

The mean number of hours for persons watching a tv show was 2.98 hours each day with a standard deviation of 2.66. Assume that in a sample of 40 teenagers the sample standard deviation of daily tv time is 1.9 hours, and that the population of tv watching times is normally distributed. Can you conclude that the population standard deviation of tv watching times for teenagers is less than 2.66?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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