If the null hypothesis is false and H0 is not rejected, then .
a. a Type I error has occurred
b. a Type II error has occurred
c. a correct decision has occurred
d. it is possible that both a Type I and a Type II error have occurred
Question 2
A Type I error occurs if the null hypothesis is when it is .
a. rejected; true
b. not rejected; true
c. rejected; false
d. not rejected; false
