hw3 - Statistical Methods in Research I STA 6166 Project 3...

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Statistical Methods inResearch –ISTA 6166Project 3Anmol Whorra4574-1839[email protected]
Part 1: New Wine development1.Random assignment as follows:BEDCAAABDBEEDEBDEDEAECBEAADCDDEACBDABCBABADCCCCABCI did a random assignment that was computer generated by assigningrandom number.2.Rating score Scatter plot: The above scatter plot shows within the grape variation. As Ican see, there is a difference in the readings in variety 3 and 4. Variety 2 and5 have (almost) equal increase in the readings.
Box plot: This box plot shows the between grape variation pattern. I can seethat variety C shows minimum amount of improvement and variety D showsmaximum improvement. There is noticeable difference in improvementbetween the grape varieties.3.Analysis of varianceDf Sum Sq Mean Sq F value Pr(>F) Variety 4 16.69 4.173 2.754 0.0393 *Residuals 45 68.18 1.515 ---Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 14.Bartlett test of homogeneity of variancesdata: e.mod1 by Variety

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