95% confidence; n = 20, x = $9004, s = $569 (based on data from hospital costs
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95% confidence; n = 20, x = $9004, s = $569 (based on data from hospital costs for car crash victims who wore seat belts, from the U.S. Department of Transportation)
Use the given confidence level and sample data to find (a) the margin of error and (b) the confidence interval for the population mean μ. Assume that the sample is a simple random sample and the population has a normal distribution.
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The margin of error 9004 196569 9004 1248 5956 The conf...View the full answer
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