A Recent Study Focused on the Number of Times Men

question 8

Multiple Choice

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. 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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Definitions:

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