For the 28 lamb birth weights of Example 6.2.2, the mean is 5.1679 kg, the SD is

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For the 28 lamb birth weights of Example 6.2.2, the mean is 5.1679 kg, the SD is 0.6544 kg, and the SE is 0.1237 kg.
(a) Construct a 95% confidence interval for the population mean.
(b) Construct a 99% confidence interval for the population mean.
(c) Interpret the confidence interval you found in part] (a). That is, explain what the numbers in the interval) mean.
(d) Often researchers will summarize their data in reports and articles by writing  ± SD (5.17 ± 0.65)1 or  ± SE(5.17 ± 0.12). If the researcher of this study is planning to compare the mean birth weight of these Rambouillet lambs to another breed, Booroolas, which style of presentation should she; use?
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Statistics For The Life Sciences

ISBN: 9780321989581

5th Edition

Authors: Myra Samuels, Jeffrey Witmer, Andrew Schaffner

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