Question

Id x z y A 6 7 3 B 4 4 7 C 10 10 8...

Id x z y
A 6 7 3
B 4 4 7
C 10 10 8
D 3 1 4
E 2 3 2


given

Ryx= 0.6719

Ryz=0.5190

ssy=26.8

what is the variation in y that is explained by x and z

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

For the given data using Regression in Excel we get output as

Here x and z are independent

            y is dependent

from the above output

Coefficient of determination ( r2 ) = 0.5578 = 55.78%

Therefore

Answer : 55.78% of the variation in y that is explained by x and z

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