A 90% confidence interval for a population mean is (65, 77). The population distribution is approximately normal
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A 90% confidence interval for a population mean is (65, 77). The population distribution is approximately normal and the population standard deviation is unknown. This confidence interval is based on a simple random sample of 25 observations. Calculate the sample mean, the margin of error, and the sample standard deviation.
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To calculate the sample mean margin of error and sample standard deviation we can use the informatio...View the full answer
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Related Book For 
OpenIntro Statistics
ISBN: 9781943450077
4th Edition
Authors: David Diez, Mine Çetinkaya-Rundel, Christopher Barr
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