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Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Stattistics In R

Transcribed Image Text:Marijuana Use During Pregnancy. For the birth weights of babies in two groups, one born
of mothers who used marijuana during pregnancy and the other born of mothers who did not (see
Exercise 7), the difference in sample averages (nonuser mothers minus user mothers) was 280 grams,
and the standard error of the difference was 46.66 grams with 1,095 degrees of freedom. From this
information, provide the following: (a) a 95% confidence interval for 42 - p1, (b) a 90% confidence
interval for u2 - 41, and (c) the two-sided p-value for a test of the hypothesis that u2 - H1 = 0.
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