Several years ago, the mean height of women 20 years of age or older was 63.7 in

Question

Several years ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a random sample of 45 women who are 20 years of age or older today results in a mean height of 64.9 inches. (a) State the appropriate null and alternative hypotheses to assess whether women are taller today. (b) Suppose the P-value for this test is 0.03. Explain what this value represents. (c) Write a conclusion for this hypothesis test assuming an alpha = 0.10 level of significance. (a) State the appropriate null and alternative hypotheses to assess whether women are taller today. A. H_0: mu = 63.7 in. versus H_1: mu > 63.7 in B. H_0: mu = 64.9 in. versus H_1: mu > 64.9 in. C. H_0: mu = 63.7 in. versus H_1: mu

Explanation / Answer

a) from above option A is correct

b) option D is correct

c) as p value is less then 0.1 level;

option A is correct

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