Which of the following is the appropriate null hypothesis for performing a chi-square test?

a. Equal proportions of female and male teenagers are almost certain they will be married in 10 years.

b. There is no difference between the distributions of female and male teenagers’ opinions about marriage in this sample.

c. There is no difference between the distributions of female and male teenagers’ opinions about marriage in the population.

d. There is no association between gender and opinion about marriage in the sample.

e. There is no association between gender and opinion about marriage in the population.

The National Longitudinal Study of Adolescent Health interviewed a random sample of 4877 teens (grades 7 to 12). One question asked, “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender:

Select the best answer.

Transcribed Image Text:

Gender Opinion about Female Male Total marriage Almost no 119 103 222 chance Some chance, 150 171 321 but probably not A 50–50 447 512 959 chance A good chance 735 710 1445 Almost 1174 756 1930 certain Total 2625 2252 4877