Using the “Traditional”
and “P-Value” Method for Hypotheses
In both “traditional”
and “p- value” method: A simple random sample of 40 recorded
speeds(in mi/h) is obtained from cars traveling on a section of highway 405 in
Los Angeles. The simple random sample has a mean of 68.4mi/h and a standard
deviation of 5.7mi/h. Use a 0.05 significance level to test the claim that the
mean speed of all cars is greater than the posted speed limit of 65 mi/h.
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