Business Analytics

A firm is studying the delivery times for two raw material suppliers. The firm is basically satisfied with its current supplier A but would like to compare its delivery time to that of a competitor (supplier B). If the delivery time of A is longer than that of B the firm will began making raw material purchases from supplier B. The firm samples 10 deliveries from supplier A and 10 deliveries from supplier B Using the .01 level of significance, determine whether evidence exists that the mean delivery time of A is significantly greater than B. Please select the correct critical value for this test. Click on the link assocated with the table you want to use to answer the question. To exit the table, go straight up and click the x to the left of the + sign. Do not click the x to the far right or far left or you will exit the exam. t Table F table ChSquare table t-table.pdf F-table2.pdf Chi-Square table.pdf O -2.8784 ONone of the answers given here 2.5524 O 2.8784 Q -2.5524