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

Question

Quizplus · Accepted Answer

For a one-tailed test with alpha = 0.05, the critical value of z is -1.645 when testing if the population mean is less than a certain value.

Suppose the Alternative Hypothesis in a Hypothesis Test Is: "The