Answered: p-value for this hypothesis test?

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Statistics

p-value for this hypothesis test?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Question

A recent study focused on the number of times men and women send a Twitter message in a day. The 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. Assume that women are population 1 and men are population 2. What is the p-value for this hypothesis test?

Multiple Choice

0.0500
0.0164
0.0001
0.0082

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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