Question: 1- Use linear regression to develop a predictive model for demand for burial vaults based on sales of caskets. Year Sales of Caskets (000) Demand

1- Use linear regression to develop a predictive model for demand for burial vaults based on sales of caskets.

Year

Sales of Caskets (000)

Demand for Vaults (000)

1

8

5

2

7

3

3

10

6

4

6

4

a) Develop the regression equation.(15 points)

1a)

Sum X=31 Avr X=7.75 Sum X^2=279 Sum X*Y=145

Sum Y=18 Avr Y =4.5 SumY^2=86

b=0.628

a=4.5-0.628*7.75= -0.367

Y= -0.367+0.628X

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