Three commuters from Sackville wanted to determine what affected the time it too

Question

Three commuters from Sackville wanted to determine what affected the time it took to get to Dalhousie in the morning. An experiment was conducted using 2 possible routes (A and B) and the three different drivers. For each route-driver combination, three trips were timed (in minutes). The data and partial ANOVA table are shown below. Driver Route A Route B 1 35 32 29 26 29 26 33 41 34 35 40 42 3 34 42 35 39 42 42 Source DF SS MS F P Driver 2 313 156.5 Route 2 Interaction 2 73 36.5 3.32 0.071 Error 12 132 11 Total 17 520 Note that interactions are significant at the a 0.10 level. Use the Minitab command invcdf (or qt() n R) to generate the correct critical t-value to use for multiple comparisons among the cell means. What is the number of possible pairs of (Driver-Route) cell means? 0.125 2 pt(s)] Submit Answer Incorrect. Tries 1/3 Prev mies what is the value of a (Enter at least four significant digits after the decima 1 pt(s Submit Answer Tries 0/3

Explanation / Answer

1.here are 3×2 cells in the table, and therefore 6C2=6!/2!*4!= 15 pairs . That's the answer

2.*=/15 =.1/15 =.0067

3.The degrees of freedom are those for MSE, that is, 12

4.The value for t uses 12 degrees of freedom and */2 =.0033, and is 3.273

Hope this will helpful to you. Thanks:)

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