Question

In: Statistics and Probability

D. Find a linear (regression) equation with following data. x y 70 25 65 20 60 ...

D. Find a linear (regression) equation with following data.

x y

70 25

65 20

60 30

50 35

45 40

Ans.: y = ( ) + ( ) * x. Show your work.

Expert Solution

Solution:

Given:

We are given following data set, we have to find a linear (regression) equation with following data.

x	y
70	25
65	20
60	30
50	35
45	40

Regression equation is :

where

Thus we need to make following table:

x	y	x^2	xy
70	25	4900	1750
65	20	4225	1300
60	30	3600	1800
50	35	2500	1750
45	40	2025	1800

Thus

and

where

Thus

( Round final answer to specified number of decimal places)

orchestra answered 2 years ago

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