Sample size, n = 49; sample mean, x = 12.8 kilograms (kg); sample standard deviation, s =
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Sample size, n = 49; sample mean, x = 12.8 kilograms (kg); sample standard deviation, s = 2.5 kg
Margins of Error and Confidence Intervals. For Exercise, assume that population means are to be estimated from the samples described. In each case, use the sample results to approximate the margin of error and 95% confidence interval.
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The sample mean is x 128 and the sample standard deviation is s 25 Thus the z score for estimating f...View the full answer
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Related Book For
Statistical Reasoning For Everyday Life
ISBN: 978-0134494043
5th Edition
Authors: Jeff Bennett, William Briggs, Mario Triola
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