For each of these problems, perform the following steps.

a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.

The data shown represent the number of accidents people had when using jet skis and other types of wet bikes. At α = 0.05, can it be concluded that the average number of accidents per year has increased from one period to the next?

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Earlier period 376 1162 1513 650 844 1650 4028 Later period 2236 3002 4010