Unformatted text preview: be large ( n > 40). Largesample level. α test for H : p = p vs. H 1 : p < p test statistic: z = ˆ pp √ p (1p ) /n . rejection region: z <z α . Example 8.11. 47 out of 102 doctors did not know the generic name for the drug methadone.What is methadone? Methadone is a rigorously welltested medication that is safe and eﬃcacious for the treatment of narcotic withdrawal and dependence. Can you conclude that fewer than half of all doctors know the generic name for methadone? Test it at 1% level. > p<47/102 > (p0.5)/sqrt(0.5*0.5/102) [1] 0.792118 > qnorm(0.01) [1] 2.326348 4. Small sample size. Example 8.13. > pbinom(15,20,0.9) [1] 0.04317450 > pbinom(16,20,0.9) [1] 0.1329533 Homework V. Due Nov 11. 9:30pm. Exercise 8.18, 8.24, 8.26, 8.32, 8.38, 8.40. Second midterm (Nov 18) will cover Homework III. IV. and V. materials....
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 Fall '04
 Chung
 Statistics, Variance, Statistical hypothesis testing, rejection region, s/ level test

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