A transportation strategist wanted to compare the traffic congestion levels across four regions. The accompanying data t

[answerhappygod]

A Transportation Strategist Wanted To Compare The Traffic Congestion Levels Across Four Regions The Accompanying Data T 1 (82.91 KiB) Viewed 100 times

A transportation strategist wanted to compare the traffic congestion levels across four regions. The accompanying data table contains congestion level, defined as the percent increase in overall travel time when compared to a free flow situation (an uncongested situation) for 10 cities in each region. Complete (a) throug (d) below. Click here to view the traffic congestion data Click here to view a partial table of critical values of the Studentized Range. Q. Determine the p-value. p-value (Round three decimal places as needed.) Reach a decision Since the p-value is than a. V Ho. There is evidence to conclude that there is a difference in the mean congestion level across regions. b. If the results in (a) indicate that it is appropriate, use the Tukey-Kramer procedure to determine which regions differ in congestion level. At the 0.05 level of significance, for which regions is there enough evidence conclude that the mean congestion levels differ? Select all that apply. A. Region 1 and Region 3 C. Region 3 and Region 4 E. Region 1 and Region 2 G. The Tukey Kramer procedure is not appropriate B. Region 1 and Region 4 D. Region 2 and Region 3 OF. Region 2 and Region 4 c. What assumptions are necessary in (a)? Select all that apply. A. Homogeneity variance B. Normality C. Equal sample sizes D. Randomness and independence d. At the 0.05 level of significance, is there evidence of a difference in the variation of the congestion level across regions? Determine the hypotheses. Choose the correct answer below. O A. Ha:c - 03-03-02 Hy: Not all o are equal (where j = 1,2,3,4) OC. Hp: 0=o ...00 Hy: 0+3+...+03 B. Hoc == ... He: Not all hy are equal (where j=1,2,...,10) OD. Hoc o2 = 0 = 0 Hp: 0 + 0 + 0 + 0 Perform a Brown-Forsythe test for homogeneity of variance. Find the test statistic. FSTAT-(Round to two decimal places as needed.) Determine the p-value. p-value = (Round three decimal places as needed.) Since the p-value is than a Ho. There is evidence to conclude that there is a difference in the variation of the congestion level across regions.