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A large school district is reevaluating its teachers' salaries. They have decided to use regression analysis to predict mean teacher salaries at each elementary school.

A large school district is reevaluating its teachers' salaries. They have decided to use regression analysis to predict mean teacher salaries at each elementary school. The researcher uses years of experience to predict salary. The raw data is given in the table below. (20 points).

Salary

(Y)

Years Exp.

(X)

$24,265.00

8

$27,140.00

5

$22,195.00

2

$37,950.00

15

$32,890.00

11

$40,250.00

14

$36,800.00

9

$30,820.00

6

$44,390.00

21

$24,955.00

2

$18,055.00

1

$23,690.00

7

$48,070.00

20

$42,205.00

16

  1. Using data analysis in Excel, derive a regression equation for this data.
  2. Using the equation derived in part (a)., calculate the salary for a teacher with 25 years of experience.

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