In a two-tail test for the population mean, if the null ...

[KWilfred]

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

[johnpizzaz]

Answer to Question 1

C

Answer to Question 2

A

[KWilfred]

Excellent

[elyse44]

Great answer, keep it coming