Determine the critical region and values for z that would be

Determine the critical region and value(s) for z that would be used to test the null hypothesis at the given level of significance.

alternative hypothesis: µ> 24, = 0.01

Solution

This is a right tailed test, by the use of the > sign.

Thus, the critical z score for this is the z score for a left tailed area of 0.99.

Thus,

zcrit = 2.326

Thus, the rejection region is at z > 2.326. [ANSWER]