Question

0 Help Me Solve This The following data represent the yields for a five-year CD for ten banks in city A and eight banks in city B. At the 0.05 level of significance, is there evidence of a difference in the variance of the yield between money market accounts and five-year CDs? Assume that the population yields are normally distributed. City A City B 1.52 1.36 1.24 1.07 0.76 1.56 1.35 1.04 0.47 0.34 0.62 0.52 0.36 0.26 0.18 1.04 0.77 0.48 The Fstar test statistic is equal to the variance of sample 1 (the larger sample variance), S. divided by the variance of sample 2 (the smaller sample variance), S. It follows an F distribution with n - 1 and n2-1 degrees of freedom, where n, is the size of sample 1 and n, is the size of sample 2. S2 FSTAT Calculate the variance of each sample, beginning with the yields for five-year CDs for city A. Although either a formula or technology could be used to find the variance, for the purposes of this problem, use technology, The variance of the yields for the five-year CDs for city Ais (Type an integer or a decimal. Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. parts remaining Clear All Check Answer Close

Answer 1

City Ai to Xp (x-7) (X-X)]n-1 $24x -1.59 .731 534 ,281 D-!|1.36 .57 .326 AM 1.24 Usi 203 Pasxi 107 0789 H 23.-23! So I n 0.76 099 booth 20789116.62 .169 .0285 0.52 -.269 .0723 1036 - 429 asta 18.40 e notte 0.264.529 .2998 0.18 4,609 3708 + CO.U .093/n422.0773 2.2308 Sample wuiance (82a): .2308, City B. 6 Xasil L56 x 460 printed gols ous and 1.35 219 508818.9 1.64 10258 strane missing tools 0.47 .168 tugines es 0.34 1.292 i la tuotta) 1.04 .0252 Borussia Doors 5. 77 0123 Licht wieder 648 1608 1.362517 2 0.1946 sample wariance (848)20.1946