An experiment was conducted to compare three types of paint to determine if there is evidence of

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An experiment was conducted to compare three types of paint to determine if there is evidence of differences in their wearing qualities. They were exposed to abrasive action and the time in hours was observed until abrasion was noticed. Six specimens were used for each type of paint. The data are as follows.(a) Do an analysis of variance to determine if the evidence suggests that, wearing quality differs for the 3 paints. Use a P-value in your conclusion.(b) If significant differences are found, characterize what they are. Is there one paint that stands out?Discuss your findings.(c) Do whatever graphical analysis you need to determine if assumptions used in (a) arc valid. Discuss your findings.(d) Suppose it is determined that the data for each treatment follows an exponential distribution. Does this suggest an alternative analysis? If so, do the alternative analysis and givefindings.image

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Probability & Statistics For Engineers & Scientists

ISBN: 9780130415295

7th Edition

Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying

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