Random Samples of Several Days' Sales of Handguns Per Day

Essay

Random samples of several days' sales of handguns per day in three different states are shown below. We are interested in determining whether or not there is a significant difference in the average sales of guns in the three states
$$\begin{array} { c c c } \text { T ennessee } & \text { Kentucky } & \text { Texas } \\12 & 15 & 16 \\13 & 19 & 18 \\17 & 20 & \\10 & & \\18 & &\end{array}$$
a. Compute the overall mean .
b. State the null and alternative hypotheses to be tested.
c. Show the complete ANOVA table for this test including the test statistic.
d. The null hypothesis is to be tested at 95% confidence. Determine the critical value for this test. What do you conclude?
e. Determine the p-value and use it for the test.