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Stat 215 Assignment 12

# Stat 215 Assignment 12 - Stat 215 Assignment 12 Module...

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Stat 215 Assignment 12 Module: QuantPlot , Exercise: Aircraft Objective : (not available) Problem Description : Use the data from the 22 US fighter aircraft introduced in the Histogram module. As mentioned, the objective of the study is to model FFD in terms of the other variables. This exercise will examine th e underlying distribution of FDD using histograms and normal quantile plots. FFD is the first flight date in months after January 1940. The questions below explore the distributional properties of FFD using the Untransformed FFD Histogram applet. You will also need to perform square root and log transforms of the data. Question Make a histogram of FFD. Does the data appear to be normally distributed? If not, characterize the shape of the distribution. Answer No, the data does not appear to be normally distributed. The distribution of FFD appears to be positively skewed, but the skewness coefficient is negative.

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Stat 215 Assignment 12 - Stat 215 Assignment 12 Module...

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