Question

Sound levels are measured at random moments under typical driving conditions for various full-size truck models. The ANOVA results are shown below. n 6 Mean 57.44 56.5 64.51 54.15 Big Bruin Gran Conto MaxRanger Oso Grande Overall 8 Std Dev 8.944 6.361 3.983 4.166 6.824 7 10 57.73 31 SS d.f MS 3 Source Between Within Total 462.4 934.70 1,397.10 154.1 34.6 27 30 The test statistic for Hartley's test for homogeneity of variance is

Multiple Choice

• 5.04

• 4.45

• 2.25

• 4.61

Answer 1

The hartley's test of homogeneity for this problem is given by :

F M Sbetween M Swithin 154.1 34.6 = 4.45

Therefore, the answer is 4.45