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Let's look at the correlation between (a) height and arm span and (b) hand span and left forearm length for 12 students. (cm) St 1

Let's look at the correlation between (a) height and arm span and

(b) hand span and left forearm length for 12 students.

(cm) St 1 2 3 4 5 6 7 8 9 10 11 12
Height 165 158 140 165 168 158 169 165 165 163 165 170
Arm Span 167 152 140.5 164.5 160 160 170 155 163.5 152 162 180
Left forearm length 45 40 42 45.5 43.5 42 43 42.5 43 41 45 48
Left hand span 21.5 18 20 17 20.5 19.5 17.5 22 19 20 21 17

Are these two associations weakly or strongly correlated? Construct a scatterplot and determine the degree of association for both associations. When done, carry out a linear regression analysis for both cases, constructing the equations for both associations.

once you have determined both equations, use them to predict the following: (a) Dr. Simon has an arm span of 70 inches. Based on your linear regression equation, how tall is he? (b) Dr. Simon's left hand spans 8 inches. Based on your linear regression equation, what is the length of his left forearm?

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