. Follow these four steps of a hypothesis test:

• • State the hypothesis and select alpha level
  • Locate the critical region
  • Compute the t-test statistic
  • Make a probability-based decision about the null hypothesis

To make a decision based on the p-value, use the following:

A local group claims that the police issue at least 60 speeding tickets a day in their area. To prove their point, they randomly select 12 days. Their research yields the number of tickets issued for each day. The data are listed below. The sample standard deviation is 14.12. At=0.01, test the group's claim using p-values.

70 48 41 68 69 55 70 57 60 83 32 60