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In: Statistics and Probability

3. 39 NFL draft prospects for the quarterback position were asked to throw a football as...

3. 39 NFL draft prospects for the quarterback position were asked to throw a football as far as they could. For this sample the mean distance was 72.3 yards and the standard deviation of the sample was 6.3 yards. a) Find a 90% CI for the true mean max distance he population of NFL prospects could throw the ball. b) Find a 90% CI for the true population standard deviation of differences.

Solutions

Expert Solution

a)

90% Confidence interval for population mean is [70.641 , 73.959]

b)

90 % confidence interval for population standard deviation is [ 5.3153 , 7.7853]

orchestra answered 2 years ago
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