Answered: an experiment to investigate four…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Transcribed Image Text: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. (Round your answers to two decimal places.) Source of Sum of Mean df Variation Squares Square Treatments 3 75672.55 25224.18 1.79 Error 16 235,467.04 14716.69 Total 19 311,139.59 Calculate the test statistic. (Round your answer to two decimal places.) F= |Enter a number. Use technology or SALT to find the P-value. (Round your answer to four decimal places.) P-value = What can you conclude? O Fail to reject H.. There is not convincing evidence that the average number of miles until failure is not the same for all four brands of spark plugs. O Fail to reject H.. There is convincing evidence that the average number of miles until failure is not the same for all four brands of spark plugs. O Reject Hn. There is not convincing evidence that the average number of miles until failure is not the same for all four brands of spark plugs. O Reject H.. There is convincing evidence that the average number of miles until failure is not the same for all four brands of spark plugs.

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