Internet Viewing A researcher wishes to estimate the average number of minutes per day a person spends on the Internet. How large a sample must she select if she wishes to be 95% confident that the population mean is within 13 minutes of the sample mean? Assume the population standard deviation is 44 minutes. Round your final answer up to the next whole number. The researcher needs a sample of at least ____ people.

Internet Viewing A researcher wishes to estimate the average number of minutes per day a person spends on the Internet. How large a sample must she select if she wishes to be 95% confident that the population mean is within 13 minutes of the sample mean? Assume the population standard deviation is 44 minutes. Round your final answer up to the next whole number. The researcher needs a sample of at least ____ people.

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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