An article in the Podunk County Times claims that children in the county watch an average of 3 hours of elevision per day. By divine revelation, we know that the standard deviation is 2 hours. A SRS of 100 Pod County children spent an average of 2.5 hours per day watching TV. a) Does this sample indicate that the mean television viewing time differs from 3 hours? Use α = .01.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 3GP
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An article in the Podunk County Times claims that children in the county watch an average of 3 hours of
television per day. By divine revelation, we know that the standard deviation is 2 hours. A SRS of 100 Podunk
County children spent an average of 2.5 hours per day watching TV.
a) Does this sample indicate that the mean television viewing time differs from 3 hours? Use a
= .01.
=
Transcribed Image Text:An article in the Podunk County Times claims that children in the county watch an average of 3 hours of television per day. By divine revelation, we know that the standard deviation is 2 hours. A SRS of 100 Podunk County children spent an average of 2.5 hours per day watching TV. a) Does this sample indicate that the mean television viewing time differs from 3 hours? Use a = .01. =
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