The heating bills for a selected sample of houses using various forms of heating are given below. (Values are in dollars.)

Natural Gas	Central Electric	Heat Pump
84 64 93 88 71	95 60 89 96 90	95 98 90 92 80

Below is the Sum of Squares for the between and within variation. Using this information, complete the table.

ANOVA Table

Source of Variation SS df MS F P-value

Between Groups 303.3 _ _ _ _

Within Groups 1565.0 _ _

Total 1959.3 _

At a=0.05, test to see if there is a significant difference among the average heating bills of homes. Use the p-value approach.

Test the above hypothesis using the critical value approach. Let a=.05.

If it turns out that there appears to be a difference, how would you determine which pair is different?

Answer rating: 100% (QA)

Mean n Std Dev 800 5 1210 Natural Gas 860 5 1485 Central Electric 910 5 686 Heat Pump 857 15 1183 To... View the full answer