Deck 20: Decisions About the Null Hypothesis

Question 1

Tests of the null hypothesis is also called significance tests.

Answer 1

True

Question 2

What does the value of p represent?

A) The probability that the null hypothesis is false
B) The probability that the null hypothesis is true
C) The probability that the alternative hypothesis is false
D) The probability that the alternative hypothesis is true

Answer 2

B

Question 3

What does the result expression "p < .05" interpret as?

A) It indicates that it is unlikely that the null hypothesis is true
B) It indicates that it is unlikely that the null hypothesis is false
C) It indicates that it is unlikely that the alternative hypothesis is true
D) It indicates that it is unlikely that the alternative hypothesis is false

Answer 3

A

Question 4

When p is greater than .05 ("p > .05"), the research does not reject the null hypothesis when it is false. What type of error, if any has been made in this decision?

A) Type I Error
B) Type II Error
C) No error

Question 5

Put the following in the order of the lowest level of significance to the highest level of significance.
a. p < .01
b. p <.001
c. p <. 05

Question 6

When the researcher makes a decision based on "p < .01," which of the following is true? There may be more than one true statement.

A) The investigator is less confident that they are making the right decision in rejecting the null hypothesis than when they use the .05 level.
B) The investigator is less confident that they are making the right decision in rejecting the null hypothesis than when they use the .001 level.
C) The investigator is more confident that they are making the right decision in rejecting the null hypothesis than when they use the .05 level.
D) The investigator is more confident that they are making the right decision in rejecting the null hypothesis than when they use the .001 level.