Kizspy | Question: 72
(Choose 1 answer)
(See picture)
Α. -2.3646
Β. 2.3646
C. -2.6264
E. None of the other choices is correct.
D. 2.6264
FUOVERFLOW
In a recent year, the Federal Communications Commission reported that the mean wait for repairs for Verizon customers was 36.5 hours. In an effort to improve this service, suppose that a new repair service process was developed. This new process, used for a sample of 100 repairs,resulted in a sample mean of 33.5 hours and a sample standard deviation of 13.7 hours. What is the critical value if we want to test claim that the population mean amount is smaller than 36.5 hours at the 0.01 level of significance?
Let t0.01:99 2.3646; 0.005;99 = 2.6264
