Three groups of guinea pigs were injected, respectively, with 0.5, 1.0, and 1.5 milligrams of a tranquilizer, and the following are the numbers of seconds it took them to fall asleep:
Use the H test at the 0.01 level of significance to test the null hypothesis that the differences in dosage have no effect on the length of time it takes guinea pigs to fall asleep.
Answer to relevant QuestionsWith reference to the generalized definition of binomial coefficients in Exercise 1.19, show that (a) (b) Counting the number of outcomes in games of chance has been a popular pastime for many centuries. This was of interest not only because of the gambling that was involved, but also because the outcomes of games of chance were ...Rework Exercise 1.56 given that at least two of the cans of tennis balls were sold on each of the three days. In exercise On a Friday morning, the pro shop of a tennis club has 14 identical cans of tennis balls. If they are ...The following are the numbers of defective pieces produced by a machine on 50 consecutive days: 7, 14, 17, 10, 18, 19, 23, 19, 14, 10, 12, 18, 19, 13, 24, 26, 9, 16, 19, 14, 19, 10, 15, 22, 25, 24, 20, 9, 17, 28, 29, 19, 25, ...If X1, X2, . . ., Xn1 and Y1, Y2, . . ., Yn2 are independent random samples, we can test the null hypothesis that they come from identical continuous populations on the basis of the Mann-Whitney statistic U, which is simply ...
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