Problem 34 MATH STATS 221

label Statistics
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Use the confidence interval to find the estimated margin of error. Then find the sample mean.

Book Prices: A store manager reports a confidence interval of (44.07 & 80.97) when estimating the mean price (in dollars) for the population of textbooks.

Apr 10th, 2015

Margin of error = 80.97 -44.07 /2 =.  36.9/2 = 18.45

Sample mean = 44.07 + 18.45 = 62.52

Apr 10th, 2015

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Niru

Apr 10th, 2015

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