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Computer, Minitab, and other printouts. r 2 = 67.8% 67.8% of the variation in percent body fat can be explained by the variation in waist size.

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Presentation on theme: "Computer, Minitab, and other printouts. r 2 = 67.8% 67.8% of the variation in percent body fat can be explained by the variation in waist size."— Presentation transcript:

1 Computer, Minitab, and other printouts

2

3 r 2 = 67.8% 67.8% of the variation in percent body fat can be explained by the variation in waist size.

4 The correlation of.823 tells us that there is a fairly strong and positive relationship between percent body fat and waist size.

5 Residual = 10 – =

6 Total Variable Count Mean SE Mean StDev Variance CoefVar Minimum Q1 C Variable MedianQ3 Maximum C Mean = Median =

7 Total Variable Count Mean SE Mean StDev Variance CoefVar Minimum Q1 C Variable MedianQ3 Maximum C Standard Deviation = IQR = Q 3 – Q 1 = – =

8 Total Variable Count Mean SE Mean StDev Variance CoefVar Minimum Q1 C Variable MedianQ3 Maximum C Use the IQR = IQR X 1.5 = X 1.5 = Q = Q 1 – = Compare to Minimum and Maximum values. If either are outside of this range, there are outliers. If not, there aren’t any. Because Min = and Max = , there are no outliers.

9 t - statistic p - value Standard error Y-intercept Slope Correlation


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