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.

Answers:

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?

Homework Answers

Answer #1
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) 8907.10
sum(X) 128.00
sum(Y) 762.90
sum(X^2) 1522.50
sum(Y^2) 52990.01
b 0.8993
a 58.88982

ycap = 0.89931x + 58.88982

slope = 0.89931

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