MINITAB was used to complete a chi-square test of independence between the number of boat-related manatee deaths and two Florida counties.

Chi-Square Test: Boat-Related Deaths, Non-Boat- Related Deaths Expected counts are printed below observed counts Chi-Square contributions are printed below expected Counts

a. Verify the results (expected values and the calculated x2 by calculating the values yourself.
b. Use Table 8 to verify the p-value based on the calculated df.
c. Is the proportion of boat-related deaths independent of the county? Use a = 0.05

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Boat-Related Deaths Non-Boat-Related Deaths County lee County Collier County Total Deaths 48 31 25 23 23 Boat-Related Non-Boat-Related Deaths 23 18.84 0.921 Deaths 25 29.16 0.595 23 18.84 0.921 48 Total 48 31 12.16 1.426 Total 31 79 Chi-Sq 3.862, DF = 1, P-Value = 0.049