Question

In Problems 19 through 25, given the following information in Problem 14 19) A ramdom sample of the circumference of 81 pumpkins (X1.X2.. Xsil with x-3240 and 19) 2X2-132000. Use the level of significance α-0.05 to test the claim that the VARIANCE of circumference of all pumpkins is equal to 40.Step 1: 1dentify Hypothesis with claim. A) HO: σ2.40 (Claim), Hai σ2x 40 C) HO: σ2p 40, Ha : 02-40 (Claim) B) HO: 0,2>40 , Ha' σ2s 40 (Claim) D) Ho: 2 40 (Claim), Ha: 240 20) Which of the following Hypothesis Tests will be used? 20) A) Two-tails for F-Test C) Left-tail for Z- Test B) Two-tails for x2-Test D) Right-tail for t-Test 21) Find sample variance s2 C) 43 A) 23 B) 50 D) 30 22) Find Test Statistic - C) 90 D) 80 B) 60 А)70 23) Step 3: Which of the following numbers is one of the Critical Values CV- B) 118. 136 C) 106. 629 D) 51.739 A) 101. 879 24) Step 4: Make decision on Hypothesis. B) Accept H0: σ2-40 / D) Reject Ha:02240 A) Accept Ha:02p 40 C) Reject Ho: 240 25) Step 5: Make decision on claim. A) Accept claim o2 40 C) Reject claim σ2p 40 B) Reject claim ,2-40 D) Accept claim σ2z 40

Answer 1

bo o 2 13 2000-(324。)//81 ל2ן- (zx) /n s.- aëp . n (31-1 30 6o