Suppose you are testing the null hypothesis that a population mean is less than or equal to 80, against the alternative hypothesis that the population mean is greater than 80.If the sample size is 49 and alpha = .10, the critical value of z is ___.
A)1.645
B)-1.645
C)1.28
D)-1.28
E)2.33

Question

Quizplus · Accepted Answer

The Answer of Suppose you are testing the null hypothesis that a population mean is less than or equal to 80, against the alternative hypothesis that the population mean is greater than 80.If the sample size is 49 and alpha = .10, the critical value of z is ___.
A)1.645
B)-1.645
C)1.28
D)-1.28
E)2.33

Suppose You Are Testing the Null Hypothesis That a Population