The following graph portrays the decision criterion for a one mean z-test, using the critical-value approach to

Question:

The following graph portrays the decision criterion for a one mean z-test, using the critical-value approach to hypothesis testing. The curve in the graph is the normal curve for the test statistic under the assumption that the null hypothesis is true.

Determine the
a. Rejection region.
b. Nonrejection region.
c. Critical value(s).
d. Significance level.
e. Draw a graph that depicts the answers that you obtained in parts (a)€“(d).
f. Classify the hypothesis test as two tailed, left tailed, or right tailed.