Consider the data from Exercise 6.7.11. Given that there are only a small number of observations in

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Consider the data from Exercise 6.7.11. Given that there are only a small number of observations in each group, the confidence interval calculated in Exercise 6.7.11 is only valid if the underlying populations are normally distributed. Is the normality condition reasonable Bere? Support your answer with appropriate graphs.
Data From Exercise 6.7.11
Decaf Calleine 28 26 -2 14 36 38 112 п1 SE 3,7 3.4
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Statistics For The Life Sciences

ISBN: 9780321989581

5th Edition

Authors: Myra Samuels, Jeffrey Witmer, Andrew Schaffner

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