Solved >   11) Two variables are dependent if changes:1190879 …

11) Two variables are dependent if changes in the levels of one variable do not affect the levels of the other variable.

12) The null hypothesis for a chi-square test of independence always states that the two variables are not independent of one another.

13) When we reject the null hypothesis for a chi-square test of independence, we are concluding that there is no relationship between the two variables.

14) For a chi-square test of independence, the expected frequencies are calculated under the assumption that the null hypothesis is true.

15) For a chi-square test of independence, the expected frequencies are permitted to be less than 5.

16) The chi-square test of independence does not allow us to state that one variable causes a change in another variable when the null hypothesis is rejected.

17) When performing a hypothesis test to compare two or more population proportions, the test statistic follows the ________.

A) normal distribution

B) Student’s t-distribution

C) chi-square distribution

D) F-distribution

18) The ________ frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

A) relative

B) expected

C) cumulative

D) observed

19) The ________ frequencies refer to the frequencies that are most likely to occur if the null hypothesis is true when performing a hypothesis test comparing two or more population proportions.

A) relative

B) expected

C) cumulative

D) observed

20) The chi-square test requires that each expected frequency be equal to or greater than ________.

A) 5

B) 10

C) 20

D) 30

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