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
Correct Answer:
Verified
Correct Answer:
Verified
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