The results of a mathematics placement exam at two different campuses of Mercy College follow: What is the computed value of the test statistic?
A) 9.30
B) 2.60
C) 3.37
D) 3.40

Question

The results of a mathematics placement exam at two different campuses of Mercy College follow:  What is the computed value of the test statistic?
A) 9.30 
B) 2.60 
C) 3.37 
D) 3.40

Quizplus · Accepted Answer

The formula for calculating the test statistic is (sample mean 1 - sample mean 2) / (pooled standard deviation * sqrt(2/n)), where n is the sample size for each campus. Plugging in the given values, we get (62.4 - 53.8) / (4.4 * sqrt(2/50)) = 3.37. Therefore, the computed value of the test statistic is 3.37, and the best choice is C.

The Results of a Mathematics Placement Exam at Two Different