Show transcribed image text 8:37 PM webassign.net Pad令 * 87%- トー/10 points DevoreStat7 5·P.037-alt. My Notes Ask Your T A particular brand of dishwasher soap is sold in three sizes: 30 oz, 35 oz, and 60 oz. Twenty percent of all purchasers select a oz box, 50% select a 35-oz box, and the remaining 30% choose a 60-oz box. Let X1 and X2 denote the package sizes selected two independently selected purchasers. (Give answers accurate to 2 decimal places.) (a) Determine the sampling distribution of X x 30 p(x)0.105 Calculate E(X) and compare to μ 45 37.5 32.5 47.5 45 0.09 0.18 0.105 0.105 21 31.8 Calculate the variance of X. 31.8 (b) Determine the sampling distribution of the sample variance S2. (Hint: Note that S-(X1 -X2)2/2) 2 0 112.5 312.5 800 P(s2) Calculate E(S2) and compare to σ . You may need to use the appropriate table in the Appendix of Tables to answer this question.
8:37 PM webassign.net Pad令 * 87%- トー/10 points DevoreStat7 5·P.037-alt. My Notes Ask Your T A particular brand of dishwasher soap is sold in three sizes: 30 oz, 35 oz, and 60 oz. Twenty percent of all purchasers select a oz box, 50% select a 35-oz box, and the remaining 30% choose a 60-oz box. Let X1 and X2 denote the package sizes selected two independently selected purchasers. (Give answers accurate to 2 decimal places.) (a) Determine the sampling distribution of X x 30 p(x)0.105 Calculate E(X) and compare to μ 45 37.5 32.5 47.5 45 0.09 0.18 0.105 0.105 21 31.8 Calculate the variance of X. 31.8 (b) Determine the sampling distribution of the sample variance S2. (Hint: Note that S-(X1 -X2)2/2) 2 0 112.5 312.5 800 P(s2) Calculate E(S2) and compare to σ . You may need to use the appropriate table in the Appendix of Tables to answer this question.
