solution

Recall Exercise 8.1.15 about the relationship between heart
disease and baldness. The data are provided in the fi le Heart Disease And
Baldness.

a. Identify the observational units.

 b. Describe the parameter(s) of interest and assign
appropriate symbol(s) to the parameter(s).

c. State in words the appropriate null and alternative
hypotheses in the context of the study.

d. State in symbols the appropriate null and alternative
hypotheses in the context of the study.

e. Use a theory-based approach to test your hypotheses from
the previous question. Report the p-value and state your complete conclusion.
Discuss your scope of conclusions: whether your results necessarily mean that
heart disease is caused by baldness or baldness is caused by heart disease and
whether you can extend your conclusions to a broader population.

 
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