A study plans to investigate the average time a 18 year old spends playing video games each week. From studies of similar age groups, it is believed the standard deviation should be near 11 hours. The study wants a 83% confidence interval to have a margin of error of 0.5 (the nearest half hour). How many 18 year olds are they going to need to sample?

A study plans to investigate the average time a 18 year old spends playing video games each week. From studies of similar age groups, it is believed the standard deviation should be near 11 hours. The study wants a 83% confidence interval to have a margin of error of 0.5 (the nearest half hour). How many 18 year olds are they going to need to sample?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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