Question

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You are trying to determine if it matters what check out line you are in at Cost-Co. You randomly observe 368 shoppers as they check-out at Cost-Co. Four check-out lines are open. The results are displayed in the table below. Use a level of significance of a -0.01. a. Complete the rest of the table by filling in the expected frequencies: Frequency of Shoppers in Each Line Check-Out Line Frequency Expected Frequency Line 1 82 92 Line 2 102 92 Line 3 69 92 Line 4 115 92 b. What is the correct statistical test to use? Select an answer c. What are the null and alternative hypotheses? HO: The shoppers and lines are independent. The distribution of shoppers is uniform. The shoppers and lines are dependent. The distribution of shoppers is not uniform. H: The shoppers and lines are dependent. The distribution of shoppers is uniform The shoppers and lines are independent The distribution of shoppers is not uniform. d. The degrees of freedom - e. The test statistic for this data- (Please round your answer to three decimal places.)

Answer 1

Line y Ooseln trien that Check out live Livet Line 2 (02 ling 69 82 requency NA 368 alne - 9 2 expected frequency freequency 1012 82 Chatuit dine Line I line 2 line 3 Liny Total 4 expected rzeglentyline 92 92 99 92 368 102 69 115 369 2 test used cm Ho. The distribution of shoppes is unifoons ophon (B) is correct Hii The dishibution of shopws is not unirom option @ is correct degree of freedom - no. of independent construnts En-1 = 4-1 =3 dif = 3 2 - A lorer² Xore 3) gy? T3 6729 13.674 Dis 2 critical at doool 11:345 22 stutishly is greepler han q cochical at d20 of cs Scannggal bers Camscanner Ho is resect of devol he