Author Question: In a two-tail test for the population mean, if the null hypothesis is rejected when the alternative ... (Read 197 times)

KWilfred · **on:** Jun 24, 2018

In a two-tail test for the population mean, if the null hypothesis is rejected when the alternative hypothesis is true:
a. a Type I error is committed.
b. a Type II error is committed.
c. a correct decision is made.
d. a one-tail test should be used instead of a two-tail test.

Question 2

If the probability of an event is .20, then the odds ratio in favor of the event occurring is expressed as
a. 1 to 4
b. 1 to 3
c. 1 to 2
d. 1 to 1