Question

nment Save Submit Assignment for Gradin Exercise 11.12 Algorithmic Question 2 of 11 Check My Work (4 remaining) eBook A study found that the variance in the number of vehicles owned or leased by subscribers to a magazine is 0.98. Assume a sample of 12 subscribers to another magazine provided the following data on the number of vehicles owned or leased: 1.1, 2,0,3,2,1,1,2,1,1, and 1. a. Compute the sample variance in the number of vehicles owned or leased by the 12 subscribers (to 4 decimals). b. Test the hypothesis H. : ? = 0.98 to determine whether the variance in the number of vehicles owned or leased by subscribers of the other magazine differs from o? -0.98 Calculate the value of the test statistic (to 3 decimals). Two-tail p-value is between 0.05 and 0.10 3 Use Table 11.11 At a .05 level of significance, what is your conclusion? We cannot reject null hypothesis. Hide Feedback Incorrect Check My Work (4 remaining)

Answer 1

| Solution : ! A study of vehicles i found that the Vloriarse in the number Razuired information is given by ?0.98.- Population Variance Calculate - » Compute the Somple Varians in the number of vehicles :- We have to oblained the Comple Voriance by using gives cota is Etrs - Comple Variance is [+1+2 to +3+2+1+1+Otititi] 12 = 16 h 15 - 130 G? [cxi-LOL 6-1) FELIC20?CH-1.63M4C2-1.33)24 Co-1.63) + (3-1-63}{+ C 16312 +C1-1.23124 (1-1.3334469-1.63)2+(1-1.6 +61-1.6304+ 1–6.Que] 104) = 6.667 = [0.6061]

Therefore, Komple Koriance - 6-10.6061] B Test the hypothe & Rypothesis : tour?=0.98 to determine C) Calculate the value of test da istic il value of test lite lale have to obtained the Ekre, 1 test (statistic.is y (0)*(6² - C1Q+) 40.6061 0.28 (*0.6061] 0-98 6.6674) = 0.98 -6.8082 Therefore zz test - 6-803) @ Find the pralce Etwo taies :- hale to oblained the plalue by using gives Cata is here yp-Calue is,

pkelle- cka teist, df-n-1] =[6.803, df =121) -[6.803) (1) = 60-81618) Therefore pvalue = Co. sius) GO) Conclusions at 270.05'- gilles data is We have to Conclude that by using Efere - p-value > a 0.9148 0-05 Fail to Peject the soul bypothe Gil at Q=0.05. Cherefore, we (fie torsesect] But hypotha Gil