Question: A motorist claims that the South Boro Police issue an average of 60 speeding

tickets per day. The following data show the number of speeding tickets each day for a period of one month. Assume the population standard deviation is 13.42. Is there enough evidence to reject the motorist’s claim at a significance level of .05? Use the P value approach. State the hypotheses and identify the claim, find the critical value(s), compute the test value, make the decision, summarize the results. A calculator/computer

software may be used to find the sample mean and standard deviation.

72 45 36 68 69 71 57 60

83 26 60 72 58 87 48 59

60 56 64 68 42 57 57 58

63 49 73 75 42 63