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

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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 1 (35.55 KiB) Viewed 59 times

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 man height of 545 inches (a) State the appropriate null and alternative hypotheses to assess whether women are taler today. (b) Suppose the P-value for this test is 0.01. Explain what this value represents. (c) Write a conclusion for this hypothesis test assuming an a-0.05 level of significance. (a) State the appropriate null and alternative hypotheses to assess whether women are taler today OA H-63.7 in. versus H, 63.7 in OC. H 63.7 in. versus H, 63.7 in OE. H: 63.7 in. versus H: 63.7 in (b) Suppose the P-value for this fest is 0.01. Explain what this value represents OA. There is a 0.01 probability of obtaining a sample mean height of 64.5 inches or shorter from a population whose mean height is 63.7 inches OB. There is a 0.01 probability of obtaining a sample mean height of 64.5 inches or taller from a population whose mean height is 63.7 inches OC. There is a 0.01 probability of obtaining a sample mean height of 63.7 inches or taller from a population whose mean height is 64.5 inches OD. There is a 0.01 probability of obtaining a sample mean height of exactly 64.5 inches from a population whose mean height is 63.7 inches. (e) Write a conclusion for this hypothesis test assuming an a-0.05 level of significance OB. H₂645nn versus H64.5 in OD H045 in versus H, OF H₂64.5 in. versus H, 64.5 in 645 M OA Do not reject the null hypothesis. There is sufficient evidence to conclude that the mean height of women 20 years of age or older is greater today OB. Reject the null hypothesis. There is sufficient evidence to conclude that the mean of women 20 years of age or older is greater today. OC. Reject the null hypothesis. There is not sufficient evidence to conclude that the mean height of women 20 years of age or older is greater today. OD. Do not reject the null hypothesis. There is not sufficient evidence to conclude that the mean height of women 20 years of age or older is greater today