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A research group wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A margin of error of E = 0.30 hour is desired. Past studies suggest that a population standard deviation of o=2.2 hours is reasonable. Estimate the minimum sample size required to estimate the population mean with 95% confidence. The required sample size is (Round up to the nearest whole number.)

A research group wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A margin of error of E = 0.30 hour is desired. Past studies suggest that a population standard deviation of o=2.2 hours is reasonable. Estimate the minimum sample size required to estimate the population mean with 95% confidence. The required sample size is (Round up to the nearest whole number.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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A research group wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A margin of error of E= 0.30 hour is desired. Past studies suggest that a population standard deviation of o=2.2 hours is reasonable. Estimate the minimum sample size required to estimate the population mean with 95% confidence. The required sample size is (Round up to the nearest whole number.) an eval
Transcribed Image Text:A research group wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A margin of error of E= 0.30 hour is desired. Past studies suggest that a population standard deviation of o=2.2 hours is reasonable. Estimate the minimum sample size required to estimate the population mean with 95% confidence. The required sample size is (Round up to the nearest whole number.) an eval
Expert Solution
Step 1: Given information

According to the given information, we have

Margin of error, E = 0.30

Population standard deviation = 2.2

Confidence level = 95%

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