For the observations 618, 650, 608, 634, 675, 618, 625, 619, 630 on Buy It Now prices
Question:
For the observations 618, 650, 608, 634, 675, 618, 625, 619, 630 on Buy It Now prices for the iPhone 5s on eBay considered in Exercise 8.35, a confidence interval for the population mean Buy It Now price on eBay is (615, 647). Suppose the 5th observation was actually 875 instead of 675. What would have been obtained for the 95% confidence interval? Compare to the original interval. How does this warn you about potential effects of outliers when you construct a confidence interval for a mean?
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321997838
4th Edition
Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg
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