In-Class Exercise 2 Questions and Answer Key - Stat-312...

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Stat-312: ICE #02 Frequency Histograms, Control Charts & SPC Name: With Answers 1. The histogram below is based on measurements of the number of scratches on a camera lens determined by visual inspection. Recall that Minitab cutpoint binning puts data values that fall on bin boundaries into the bin on the right, by the rule b i x j < b i+1 . Answer the following questions based on the histogram.
(b) Is this distribution symmetric, skewed left, or skewed right? Skewed Right This distribution is skewed right; the tail to the right is more elongated than the tail on the left.
(c) Based on your answer to part (b), estimate the numeric value of skew.

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