Question: 38
(Choose 1 answer)
In a random sample of 60 computers, the mean repair cost was $150 with a standard deviation of $36. Construct a 90%
confidence interval for the population mean.
A. (141, 159)
B. (537, 654)
C. (138, 162)
D. (142, 158)
E. None of the other choices is correct
Let
#aos=1.645, #1=1.282, fuss =1.671, tous =1.296
