You want to estimate the mean number of friends forall Facebook users. How many users must be in thesample if you want to be 95% confident that thesample mean is within seven friends of the populationmean? Assume the standard deviation is 53.

Given data : 95% CI Standard deviation = 53 E = 7

Answered: You want to estimate the mean number of…

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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You want to estimate the mean number of friends for all Facebook users. How many users must be in the sample if you want to be 95% confident that the sample mean is within seven friends of the population mean? Assume the standard deviation is 53.