Question

A car dealership recently completed an analysis of the profits (in 5) for five categories of vehicles. The results are presented in the ANOVA table below. Anova: Single Factor SUMMARY Groups Compact Hybrid Sedan Count Sum Average Variance 28 51260 1830.714 416467.4 8 15366 1920.75 363319.1 68 118833 1747.544 400587.8 S7 108454 1902.702 4300302 1937857 1992.474 452397 SUV Truck ANOVA Source of Variation Between Groups Within Groups SS 1299856 72852075 MS F P value 4 324964.1 0.780605 0.539178 175 416297.6 Ferit 2.423286 Total 74151931 Refer to the ANOVA output for the car dealership above. How many groups were examined? a. 179 b. 180 Oc5 d. 175

Answer 1

We have n-1 total degrees of freedom. Here total degrees of freedom is 179. Therefore n= 180.

Therefore 180 groups were examined.

Option b is correct.