Los angeles based on data from sigalert

Reference no: EM13332789

In CaliforniaSpeeding.jmp are recorded speeds (in miles/hour) of a randomly selected sample of cars traveling on a section Highway 405 in Los Angeles (based on data from Sigalert). That part of the highway has a posted speed limit of 65 miles/hour. Assume that the standard deviation of speeds is 5.7 miles/hour and use a 0.01 significance level to test the claim that the population mean is greater than 65 miles/hour. Write a brief paragraph to summarize your findings

Reference no: EM13332789

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