6.7.15 Researchers reported the mean ± SE foot circumferences of many male and female Sumatran elephants as
Question:
(a) Compute an approximate 95% confidence interval for the difference between the mean fool circumference for males and females.
(b) Interpret the confidence interval from part (a) in the context of the problem.
(c) Is there compelling evidence that the population mean foot circumference for male and females is not the same? Briefly justify your answer.
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a The SE for the difference in means is 44 2 33 2 55 Using 2 as the approximate t multip...View the full answer
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Related Book For 
Statistics For The Life Sciences
ISBN: 9780321989581
5th Edition
Authors: Myra Samuels, Jeffrey Witmer, Andrew Schaffner
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