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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 409 Weeks Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Bumpus’s Study. Use a statistical computer program to perform the rank-sum comparison of humerus lengths in the sparrows that survived and the sparrows that perished (Exercise 2.21). (a) What is the two-sided p-value? (b) Does the statistical computer package report the exact p-value or the one based on the normal approximation? (c) If it reports the one using the normal approximation, does it use a continuity correction to the Z-statistic? (d) How does the p-value from the rank-sum test compare to the one from the two-sample t-test (0.08) and the one from the two-sample t-test when the smallest observation is set aside (see Chapter 3, Exercise 28)? (e) Explain the relative merits of (i) the two-sample t-test using the strategy for dealing with outliers and (ii) the rank-sum test
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