Homework Help: stats

Posted by Anonymous on Monday, April 30, 2012 at 12:58pm.

a random sample of 20 prices for summer sleeping bags was taken with a sample mean $83.75 and a sample standard deviation of $29.97
a) find a 95% confidence interval for the mean price of all summer sleeping bags
b)what is m i.e. what is the margin f error?

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