Mathematics, 01.12.2021 03:30, mikaelalcool1

Suppose you think the average driving speed on Interstate 94 is 75 mph. Your friend thinks that the average is really greater than 75 mph. To test this you take a sample of 36 people and ask them how fast they drive on Interstate 94. After collecting your sample, you calculate that the mean is 78 mph with a standard deviation of 9 mph and want to find if your friend is right with alpha

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