Refer to Exercise 9.5. Explain what each of the following would mean.
a. Type I error
b. Type II error
c. Correct decision
Now suppose that the results of carrying out the hypothesis test lead to nonrejection of the null hypothesis. Classify that conclusion by error type or as a correct decision if in fact the mean cadmium level in Boletus pinicola mushrooms
d. Equals the safety limit of 0.5 ppm.
e. Exceeds the safety limit of 0.5 ppm.