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#7 In an experiment to investigate the performance of four different brands of spark plugs intended...

#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.

Math   Statistics-And-Probability   
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