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Elementary Statistics: A Step by Step Approach 8th ed. | 8th Edition | ISBN: 9780073386102 | Authors: Allan G Bluman Professor Emeritus
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Television Viewing by Teens Teens are reported to watch

Chapter 8, Problem 11

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QUESTION:

Television Viewing by Teens Teens are reported to watch the fewest total hours of television per week of all the demographic groups. The average television viewing for teens on Sunday from 1:00 to 7:00 P.M. is 1 hour 13 minutes. Arandom sample of local teens disclosed the following times for Sunday afternoon television viewing. At a _ 0.01 can it be concluded that the average is greater than the national viewing time? (Note: Change all times to minutes.) 2:30 2:00 1:30 3:20 1:00 2:15 1:50 2:10 1:30 2:30 Source: World Almanac.

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QUESTION:

Television Viewing by Teens Teens are reported to watch the fewest total hours of television per week of all the demographic groups. The average television viewing for teens on Sunday from 1:00 to 7:00 P.M. is 1 hour 13 minutes. Arandom sample of local teens disclosed the following times for Sunday afternoon television viewing. At a _ 0.01 can it be concluded that the average is greater than the national viewing time? (Note: Change all times to minutes.) 2:30 2:00 1:30 3:20 1:00 2:15 1:50 2:10 1:30 2:30 Source: World Almanac.

ANSWER:

Step 1 of 4

First we will change time in minutes.

Sample mean using excel function AVERAGE(),

Sample standard deviation using excel function STDEV.S,

Sample size,

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