Several years ago, the mean bright of women 20 years of age or older was 637 inchen. Suppose that a random sample of 45

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Several Years Ago The Mean Bright Of Women 20 Years Of Age Or Older Was 637 Inchen Suppose That A Random Sample Of 45 1 (49.76 KiB) Viewed 32 times

Several years ago, the mean bright of women 20 years of age or older was 637 inchen. Suppose that a random sample of 45 women who are 20 years of age or older today results in a mean height of 64 8 inches (a) State the appropriate null and alterative hypotheses to assess whether women are taller today (b) Suppose the value for this testis 008 Explain what this value represents (c) Write a conclusion for this hypothesis test assuming an a=005 level of significance () State the appropriate null and alterative hypotheses to assess whether women are taller today O A Hy 637 in versus H, > 637 in OCH 648 in versus H, #> 64.8 in OE H2=648 in versus H<648 in OBH-648 in versus H, F648 in OD. H 63.7 in versus H, <637 in OF. Ho 63.7 in versus , 637 in (b) Suppose the P-value for this testis 0.08 Explain what this value represents O A. There is a 008 probability of obtaining a sample mean height of 64. 8 inches or taller from a population whose mean height is 637 inches OB. There is a 008 probability of obtaining a sample mean height of exactly 64 8 inches from a population whose mean height is 63.7 inches C. There is a 0.08 probability of obtaining a sample mean bright of 63 7 inches or taller from a population whose mean height is 64 8 inches OD. There is a 0.08 probability of obtaining a sample mean height of 64 8 inches or shorter from a population whose mean height is 63 7 inches (c) Write a conclusion for this hypothesis test assuring an 0.05 level of significance O A. 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 height of women 20 years of age or older is greater today OC. 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 OD. Reject the nul hypothesis. There is not sufficient evidence to conclude that the mean height of women 20 years of age or older is greater today