Question

Let's say that we are interested in the relationship between shoe size and height. Let's say...

Let's say that we are interested in the relationship between shoe size and height. Let's say we have the following data. What is the regression equation between these two variables? X (Shoe Size in inches): 13 12.5 11 11.5 12 11 13 14 13 9 8 Y (Height in inches): 68 69 70 67.4 69 73 74 71 70.5 64 67.

 y = -.89931x - 58.88982 y = .89931x + 58.88982 y = 58.88982x +.89931 y = .89931x - 58.88982

Providing your own answer what is the slope value to the previous question?

 X Y XY X^2 Y^2 13 68 884 169 4624 12.5 69 862.5 156.25 4761 11 70 770 121 4900 11.5 67.4 775.1 132.25 4542.76 12 69 828 144 4761 11 73 803 121 5329 13 74 962 169 5476 14 71 994 196 5041 13 70.5 916.5 169 4970.25 9 64 576 81 4096 8 67 536 64 4489

 n 11 sum(XY) 8907.1 sum(X) 128 sum(Y) 762.9 sum(X^2) 1522.5 sum(Y^2) 52990
 b 0.8993 a 58.8898

ycap = 0.89931x + 58.88982

slope = 0.89931

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