Question

In: Statistics and Probability

The following sample observations were randomly selected. (Round your answers to 2 decimal places.) X: 4...

The following sample observations were randomly selected. (Round your answers to 2 decimal places.)

X:

4

5

3

6

10

Y:

9.8

10.6

8

15.4

19.6

a. The regression equation is   Yˆ Y⁢^⁢  =  +  X
b. When X is 8 this gives Yˆ Y⁢^⁢  =   

Solutions

Expert Solution

Solution-

a) the regression equation is -

y (hat) = 3.18 + ( 1.70 • X)

b) Let X = 8,

putting in regression equation-

= 3.18 + ( 1.70 × 8)

16.78

for X = 8 y(hat ) is 16.78

-------

◆ regression equation calculation-


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