Cost of Knee Replacement Surgery U.S. insurers costs for
Chapter 7, Problem 7(choose chapter or problem)
Cost of Knee Replacement Surgery U.S. insurers costs for knee replacement surgery range from $17,627 to $25,462. Estimate the population variance (standard deviation) in cost with 98% confidence based on a random sample of 10 persons who have had this surgery. The retail costs (for uninsured persons) for the same procedure range from $40,640 to $58,702. Estimate the population variance and standard deviation in cost with 98% confidence based on a sample of 10 persons, and compare your two intervals. Source: Time Almanac.
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