set 63

First report: Use the Honolulu Heart Study (HHS) dataset to calculate the sample mean, sample standard deviation, and sample size for body weight values comparing men of moderate activity level with men of high activity level.  State and discuss an appropriate null hypothesis.

Second report: Use the U.S. counties dataset to calculate, compare, and discuss the 95% confidence interval estimate (95% CIE = mean ± two standard errors) for mean infant mortality rate among California counties with the 95% CIE for mean infant mortality rate for Indiana counties.  State and discuss an appropriate null hypothesis.

OPTIONAL EXTRA-CREDIT report: Use the U.S. counties dataset to create a x:y scatterplot graph comparing median household income and infant mortality rate for all Indiana counties, and discuss their statistical correlation using an appropriate null hypothesis.

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