(p. 548). Recall that 150 customers provided overall performance ratings at each of three different bus depots...
Question:
(p. 548). Recall that 150 customers provided overall performance ratings at each of three different bus depots (Depot 1, Depot 2, and Depot 3). The average performance scores were determined to be significantly different at a = .05 using an ANOVA F-test. The sample mean performance scores were reported as x1 = 67.17, x2 = 58.95, and x3 = 44.49. The researchers employed the Bonferroni method to rank the three performance means using an experimentwise error rate of .05. Adjusted 95% confidence intervals for the differences between each pair of treatment means are shown in the table. Use this information to rank the mean performance scores at the three bus depots. Comparison Adjusted 95% CI 1m1 - m22 (1.50, 14.94) 1m1 - m32 (15.96, 29.40) 1m2 - m32 (7.74, 21.18)
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Statistics For Business And Economics
ISBN: 9781292413396
14th Global Edition
Authors: James McClave, P. Benson, Terry Sincich