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 (151.58 KiB) Viewed 26 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 mean height of 64.4 inches. । (a) Slale the approprialenul and alternative hypotheses to assess whether wuinen are taller today. b) Suppose the P-value for this test is 0.13. Explain what this value represents. c) Write a conclusion for this hypothes 8 test assuming an a=0.C5 level of significance. (a) Slate the appropriate nul and alternative hypotheses to assess whether women are taller today. O A HE: -84.4 in. versus H,p<84.4 in. OC. How=13.7 in, versus Hy:#63.7 in OE HH=13.7 in versus H> 63.7 in. OB. H:- 34.4 in. versus H, > 14.4 in OD. Ho: = 63.7 in. versus Hy <63.7 in OF. Hoi = 644 in. versus H, 1764.4 in b) Suppose the P-value for this test is 0.13. Explain what this value represents On There is a 0.13 probability of obtaining a sample mean height of 64.4 inches or taller from a population whose mean height is 63.7 inches. OB. There is a 0.13 prabability of obtaining a sample mean height of 63.7 inches ar taller from a population whree mean height is 64.4 inches. OC. There is a 0.13 probability of obtaining a sample mean height of exactly 64.4 inches from a population whose mean height is 63.7 inches. OD. There is a 0.13 probability of obtaining a sample near height of 64.4 inches or shorter from a population whose mean height is 63.7 inches c) Write a conclusion for this hypothess test assuming an a=0.06 level of significance, O A Do not reject the null hypothesis. There is not sufficient evidence to conclude that the meen helght of women 20 years of age or older is greater today OB. Reject the null hypothesis. There is sufficient evidence lo conclude that the mean height of wuinen 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 sufficient evidence to conclude that the mean height of women 20 years of age or older is greater today.