Question

Commercial apple trees usually consist of two parts grafted together. The upper part, or graft, determines the character of the fruit, while the root stock determines the size of the tree.† The following data are from two root stocks, A and B. The data represent total extension growth (in meters) of the grafts after 4 years. Stock A 2.81 3.02 1.94 2.91 3.11 2.71 2.74 2.10 2.13 2.94 2.77 Stock B 2.52 2.26 2.86 2.37 2.78 2.58 1.96 2.44 3.41 1.58 2.88 Use a 1% level of significance and the rank-sum test to test the claim that the distributions of growths are different for root stocks A and B. Interpret the results. What is the level of significance? State the null and alternate hypotheses. H0: The distributions of growths are the same. H1: The distributions of growths are different. H0: The distributions of growths are the same. H1: The distributions of growths are the same. H0: The distributions of growths are different. H1: The distributions of growths are the same. H0: The distributions of growths are different. H1: The distributions of growths are different. Compute the sample test statistic. (Round your answer to two decimal places.) What sampling distribution will you use? uniform Student's t chi-square normal What conditions are necessary to use this distributions? Both sample sizes must be greater than 10. At least one sample size must be less than 10. At least one sample size must be greater than 10. Both sample sizes must be less than 10. Find the P-value of the sample test statistic. (Round your answer to four decimal places.)

Answer 1

0 Give dta 2.55, INy 우 44, 3-4yk5, . steck B: 3.52, 3.26, 3.s6, 2 37,27 Mean(x)- 21.18 2653 1M-1 0198 8 430 St 0.4036

lC 0.2403 οι o.ol a tive hiPothesis groat» ane the Sne Nythesis The disti butions of gYoci Necs to find the tt -sttse 0.0366

3 0 1913 Je Ge aill use student, t Sam?Jin, distoibuhơn Both Sample Sizes must be ggeatottan O - Q2-2 Nna e-value :. the Values of t (o.13) amd df 3o) then Ge etP- value P-value -6-4138