Unformatted text preview: b. The rejection region is of the form Z ≥ c for some c . Hence the Pvalue is P ( X ≥ 1 . 42) where X is a standard normal distribution. Thus Pvalue equals 1Φ(1 . 42) = 0 . 0778. Since this is larger than 0 . 05, the null hypothesis is not rejected at 5% level. c. The rejection region is of the form  Z  ≥ c for some c . Hence the Pvalue is P (  X  ≥ 1 . 42) where X is a standard normal distribution. Thus Pvalue equals 2(1Φ(1 . 42)) = 0 . 1556. Since this is larger than 0 . 05, the null hypothesis is not rejected at 5% level. 1...
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 Spring '05
 STAFF
 Statistics, Normal Distribution, Hypothesis testing, Statistical hypothesis testing, 5%, standard normal distribution

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