SOLUTION: An instructor has been accused of sexual discrimination in grading, a serious charge. The dean takes a random sample of 150 grades posted by the instructor in the past and arrives

Algebra ->  Probability-and-statistics -> SOLUTION: An instructor has been accused of sexual discrimination in grading, a serious charge. The dean takes a random sample of 150 grades posted by the instructor in the past and arrives       Log On


   

Question 637808: An instructor has been accused of sexual discrimination in grading, a serious charge. The dean takes a random sample of 150 grades posted by the instructor in the past and arrives at the results shown in the table.
Male Students
Female Students
Grade A
15
19
Grade B
21
15
Grade C
26
16
Grade D
9
14
Grade F
9
6

The Dean is willing to take only a 5% risk of incorrectly supporting the charge of sexual discrimination. Calculate the appropriate test statistic.
options:
4.8936
2.2121
23.9473
4.628
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
Degrees of freedom: 4
Test Statistic, Chi Square: highlight%284.8936%29
Critical Value: 9.48772
P-Value: 0.2984
Fail to Reject the Null Hypothesis.
There is no enough evidence to support the charge of sexual discrimination.