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

[jlmhmf]

In a one-tail test for the population mean, if the null hypothesis is not rejected when the alternative hypothesis is true then:
 a. a Type I error is committed.
  b. a Type II error is committed.
  c. a one-tail test should be used instead of a two-tail test.
  d. a two-tail test should be used instead of a one-tail test.

Question 2

In a two-tail test for the population mean, if the null hypothesis is rejected when the alternative hypothesis is true then:
 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.

[smrerig]

Answer to Question 1

B

Answer to Question 2

C

[jlmhmf]

Gracias!

[nguyenhoanhat]

TYSM