Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

A recent study focused on the number of times men and women send a Twitter messa

ID: 3057761 • Letter: A

Question

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

  

Sample size sample mean                population standard deviation

Men                   25                          23                                              5

women               30                         28                                             10


At the .01 significance level, is there a difference in the mean number of times men and women send a Twitter message in a day? What is the p-value for this hypothesis test?
.

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

  

Sample size sample mean                population standard deviation

Men                   25                          23                                              5

women               30                         28                                             10


At the .01 significance level, is there a difference in the mean number of times men and women send a Twitter message in a day? What is the p-value for this hypothesis test?
.

Explanation / Answer

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

  

Sample size sample mean                population standard deviation

Men                   25                          23                                              5

women               30                         28                                             10


At the .01 significance level, is there a difference in the mean number of times men and women send a Twitter message in a day? What is the p-value for this hypothesis test?
.

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

  

Sample size sample mean                population standard deviation

Men                   25                          23                                              5

women               30                         28                                             10


At the .01 significance level, is there a difference in the mean number of times men and women send a Twitter message in a day? What is the p-value for this hypothesis test?
.