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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
No tortilla chip aficionado likes soggy chips, so it is important to find characteristics of the production process that produce chips with an appealing texture. The following data on x = frying time (sec) and y = moisture content (%) appeared in the article “Thermal and Physical Properties of Tortilla Chips as a Function of Frying Time” (J. of Food Processing and Preservation, 1995: 175–189)
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a. Construct a scatterplot of y versus x and comment.
b. Construct a scatterplot of the (ln(x), ln(y)) pairs and comment.
c. What probabilistic relationship between x and y is suggested by the linear pattern in the plot of part (b)?
d. Predict the value of moisture content when frying time is 20, in a way that conveys information about reliability and precision.
e. Analyze the residuals from fitting the simple linear regression model to the transformed data and comment.
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