Refer to the StatCrunch output from National Health and Nutrition Examination Survey (NHANES) data, which shows the association between marital status and cholesterol. Assume the population distributions are close enough to Normal to justify using ANOVA.

a. Write the null and alternative hypotheses for the association between marital status and cholesterol.
b. Identify the F-statistic from the StatCrunch output.
c. Which marital status had the largest sample mean and which had the smallest sample mean?
d. Assuming that you did find an association between marital status and cholesterol levels, would this association mean that marital status caused different cholesterol levels? Can you think of a confounding factor?

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ons Analysis of Variance results Responses in Cholest Factors in Marital. Factor means Marital n Mean Std. dev Std. Error 78 212.52564 51.753844 5.8599689 Divorced Living with prtner 61 198.2950B 40.437748 5.1775231 Married Never marned184 184.49457 46.456631 3.4248283 Separated Widowed90 209.58889 48.150955 5.0755563 ANOVA table 507 208.13412 41.703425 1.8521141 20 208 42.631839 9.532769 Source SS Treatments5 89082.105 17816.421 9.1420934 <0.0001 Error Total MS F-Stat p-value 934 1820210.8 1948.8338 939 1909292.