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Chapter 2: Q52. (page 99)

Use the table that shows the years of experience for eight sales representative and their sales during a given period of time.

years

6

5

3

1

4

3

6

2

Sales

9000

6000

4000

3000

6000

5000

8000

2000

Find the prediction equation

Short Answer

Expert verified

The prediction equation is y=47000x+67.

Step by step solution

01

Identify two points representative for best fit line 

The slope is

m=y2鈭�y1x2鈭�x1m=6鈭�29000鈭�2000m=47000

02

Substitutes on of the points 

Substation of the point in the above equation

y=mx+cy=47000x+b

03

Solve for b for complete prediction 

X=9000

Y=6

6=470009000+bb=67

On substituting the value of b

y=47000x+67

Hence, the final inequalities is 47000x+67.

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