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What is the lower limit of the confidence interval

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Reference no: EM132402415

A random sample of 15 health maintenance organizations (HMOs) was selected. For each HMO, the co-payment (in dollars) for a doctor's office visit was recorded. The results are as follows: 9, 10, 10, 5, 9, 10, 5, 6, 5, 8, 12, 12, 6, 11, 7

Under the assumption that co-payment amounts are normally distributed, find a 95% confidence interval for the mean co-payment amount in dollars. Then complete the table below.

Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.)

What is the lower limit of the confidence interval?

What is the upper limit of the confidence interval?

Reference no: EM132402415

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