Consider the Data Table Showing Epidemiology Data for 36 Individuals

Essay

Consider the data table showing epidemiology data for 36 individuals with a disease and 38 healthy comparison individuals. Their deaths are recorded over a period of 16 months.
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$\begin{array}{c}\underline { \text { Diseased } } \quad \quad \quad \quad \quad \quad \quad \quad\underline { \text { Healthy}}\\\begin{array}{cccc}\text { Time } & \text { \# at risk } & \text { Deaths } & \text { \# at risk } & \text { Deaths } \\2 & 36 & 2 & 38 & 2 \\4 & 33 & 7 & 35 & 4 \\6 & 25 & 5 & 31 & 3 \\8 & 20 & 5 & 27 & 4 \\10 & 15 & 2 & 20 & 2 \\12 & 13 & 3 & 18 & 3 \\14 & 9 & 1 & 14 & 1 \\16 & 8 & 1 & 12 & 2\end{array}\end{array}$
a.Calculate the hazard ratio and 95% confidence interval for the hazard ratio.
b.Perform a χ² test on the hazard ratio. Present the χ² value, a range for the P-value it corresponds to, and the interpretation of your test.