Multiple Choice
Suppose the alternative hypothesis in a hypothesis test is: "the population mean is less than 60".If the sample size is 50 and alpha =.05, the critical value of z is ___.
A) 1.645
B) -1.645
C) 1.96
D) -1.96
E) 2.05
Correct Answer:

Verified
Correct Answer:
Verified
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