Kizspy | Question: 114
(Choose 1 answer)
(See picture)
Α. -2.1
B. -2.6
C. -3.1
D. -3.7
College students majoring in computer science and interested in pursuing careers in computer security were randomly put into either Python or PowerShell classes. In a standard security certification exam, 100 students who took Python scored an average of 76.5 with a sample standard deviation of 7.4, while 125 students who took PowerShell averaged 78.8 with a sample standard deviation of 5.6. Suppose that the two population standard deviations are equal.
We want to ask whether there is sufficient evidence of a difference in the test results. What is the test statistic for
H0: μ1 - μ2 = 0 and H1: 1-µ270?
