a) What is the chi-square statistic associated with your test?

2.19

8.90

18.67

5.48

25.49

b) Given your test results, what is your decision about the null hypothesis?

Reject the null hypothesis

Fail to reject (i.e., retain) the null hypothesis

c)

Interpret your decision about the null hypothesis from the previous question.

Based on our study, we have enough evidence to conclude that there appears to be a relationship/association between health insurance and blood type. In other words, health insurance and blood type do not appear to be independent.

Based on our study, we do not have enough evidence to conclude that there appears to be a relationship/association between health insurance and blood type. In other words, health insurance and blood type appear to be independent.

A researcher is interested in whether or not there is any association between health insurance provider and blood type. The researcher asks 1000 participants about their current health insurance provider and their blood type. Results of his survey are reported below. United Kaiser Anthem TOTAL 0 173 124 103 400 AB 43 26 31 100 A 138 86 76 300 B 96 64 40 200 TOTAL 450 300 250 1000 His research question of interest is: Is there any association between health insurance provider and blood type? You would like to test his research question of interest using a two variable chi-square test with an alpha (a) level of 0.01.