Mathematics, 16.12.2019 21:31, Damagingawsomeness2

Acountry is considering raising the speed limit on a road because they claim that the mean speed of vehicles is greater than 30 miles per hour. a random sample of 15 vehicles has a mean speed of 35 miles per hour and a standard deviation of 4.7 miles per hour. at ? = .01, do you have enough evidence to supprot the country's claim?

calculate the p-value:

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Acountry is considering raising the speed limit on a road because they claim that the mean speed of...