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A study was conducted to estimate hospital costs for accident victims who wore seat belts. Twenty-five randomly selected cases have a distribution that appears to

A study was conducted to estimate hospital costs for accident victims who wore seat belts. Twenty-five randomly selected cases have a distribution that appears to be approximately bell shaped with a mean of $9742 and a standard deviation of $5564. Complete parts(a) and(b).

a. Construct the95% confidence interval for the mean of all such costs.

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(Round to the nearest dollar asneeded.)

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