Question

#7

In an experiment to investigate the performance of four different brands of spark plugs intended for use on a 125-cc motorcycle, five plugs of each brand were tested, and the number of miles (at a constant speed) until failure was observed. A partially completed ANOVA table is given.

Fill in the missing entries, and test the relevant hypotheses using a 0.05 level of significance. (Give the answer to two decimal places.)

Source of Variation	df	Sum of Squares	Mean Square	F
Treatments
Error		235953.04
Total		310207.82

The data  ---Select--- are are not consistent with the null hypothesis.

Answer 1