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1 Suppose you take a sample of 16 people and ask them how fast they drive on Interstate 94. After collecting your sample, you calculate

1 Suppose you take a sample of 16 people and ask them how fast they drive on Interstate 94. After collecting your sample, you calculate that the mean is 75mph with a variance of 9mph. Calculate a 90% confidence interval for the average speed of all drivers on I94.

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