n 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 rand 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. (Round your answers to two decimal places.) Source of Variation Treatments Error Total df Sum of Squares 236,439.04 318,697.28 Mean Square Calculate the test statistic. (Round your answer to two decimal places.) F Jse technology to find the P-value. (Round your answer to four decimal places.) P-value =

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