Under the assumption that co payment amounts are normally, Ask an Expert

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A random sample of 19 HMO's was selected. For each HMO the co-payment for a doctors office visit was recorded. The results were...

In dollars,

9,10, 11, 10, 7, 6, 5, 12, 11, 10, 12, 8, 7, 6, 11, 6, 8

Under the assumption that co payment amounts are normally distributed, find a 99% confidence interval for the mean amount in dollars.

Round to 1 decimal place.

What is the lower limit of the 90% confidence interval?

What is the upper limit of the 90% confidence interval?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9375994

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