Calculate the correlation between x and y

Assignment Help Engineering Mathematics

Reference no: EM131464784

Question: 1. Using the preceding matrix data (Forbes 500), select a pair of variables and run a simple regression. Then investigate the appropriateness of the model for the data using diagnostic tools for evaluating assumptions.

2. For the following data,

X Y

25 5

19 7

17 12

14 23

12 20

9 25

8 26

7 28

3 20

a Calculate the correlation between X and Y.

b Interpret the sign of the correlation.

c Interpret the square of the correlation.

d Plot the least-squares line.

e Test for a linear relationship:

(1) β₁ = 0

(2) r = 0

(3)An F test

Reference no: EM131464784

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