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A study was conducted to estimate the hospital costs for accident victims who were involved in drunk driving.A simple random sample was selected from a

A study was conducted to estimate the hospital costs for accident victims who were involved in drunk driving.A simple random sample was selected from a normally distributed population. The population standard deviation was $6257. A 92% confidence interval for the mean of all such costs was reported to be from $13835 to $14135.

Determine the margin of error and the sample size used in this study.

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