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# Year Quarter Overtime hours 2013 1 20 2 30 3 28 4 20 2014 1 24 2 34 3 28 4 21 2015 1 28 2 38 3 31 4 26 2016 1 30 2 41 3 35 4 28 How to calculate

Year Quarter Overtime hours

2013 1 20

2 30

3 28

4 20

2014 1 24

2 34

3 28

4 21

2015 1 28

2 38

3 31

4 26

2016 1 30

2 41

3 35

4 28

How to calculate Linear trend line by using regression technique?

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• Thanks. But how can we calcilate it by hand (I mean specially writting in exam)
• ahasnat57
• May 17, 2018 at 6:04am
• Y = a + bX where a and b are computed using a = [(sum of y)(sum of x^2)-(sum of x)(sum of xy)] / [n(sum of x^2) - (sum of x)^2] and b = [n(sum of xy) - (sum of x)(sum of y)] / [n(sum of x^2) - (sum of x)^2]
• yasodharan
• May 17, 2018 at 10:20pm

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