Kizspy | Question: 125
(Choose 1 answer)
Let z 0.0052.576, Z 0.01 2.33
30 students were randomly selected from a large group of students taking a certain calculus test. The mean score for the students in the sample was 90. Assume that the population standard deviation is 6.5. Construct 99% upper confidence bound for the mean score of all students taking the test.
A. 92.77 Β. 93.06 C. 92.57 D. 93.11
E. None of the other choices is correct
