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Name: A recent study focused on the number of times men and women send a Twi
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Description: A recent study focused on the number of times men and women send a Twitter message in a day. The sample information is summarized here. Sample Size Sample Mean Population Standard Deviation Men 25 23 5 Women 30 28 10 At the 0.01 significance level, w

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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A recent study focused on the number of times men and women send a Twitter message in a day. The sample information is summarized here.

Sample Size Sample Mean Population Standard Deviation

Men 25 23 5

Women 30 28 10

At the 0.01 significance level, we ask if there is a difference in the mean number of times men and women send a Twitter message in a day. What is the test statistic for this hypothesis?

A) z-statistic

B) t-statistic

C) p-statistic

D) df-statistic

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