Aptitude Test Scores
Two random samples of 40 students were drawn independently from two populations of students.Assume their aptitude tests are normally distributed (total points = 100).The following statistics regarding their scores in an aptitude test were obtained: .
-{Aptitude Test Scores Narrative} Estimate with 95% confidence the difference between the two population means.

Question

Aptitude Test Scores 
Two random samples of 40 students were drawn independently from two populations of students.Assume their aptitude tests are normally distributed (total points = 100).The following statistics regarding their scores in an aptitude test were obtained:  . ​ ​
-{Aptitude Test Scores Narrative} Estimate with 95% confidence the difference between the two population means.

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The Answer of Aptitude Test Scores 
Two random samples of 40 students were drawn independently from two populations of students.Assume their aptitude tests are normally distributed (total points = 100).The following statistics regarding their scores in an aptitude test were obtained:  . ​ ​
-{Aptitude Test Scores Narrative} Estimate with 95% confidence the difference between the two population means.