Question

MATLAB 6.27 Develop a function that will calculate slope m and intercept b of the least-squares line that best fits an input data set. The input data points (x,y) will be passed tothe function in two input arrays, x and y. Test your function using a test program and the following 20-point data set:

Sample Data set

1 x=-4.91 y=-8.18

2 x=-3.84 y=-7.49

3 x=-2.41 y=-7.11

4 x=-2.62 y=-6.15

5 x=-3.78 y=-6.62

6 x=-0.52 y=-3.30

7 x=-1.83 y=-2.05

8 x=-2.01 y=-2.83

9 x=0.28 y=-1.16

10 x=1.08 y=0.52

11 x=-0.94 y=0.21

12 x=0.59 y=1.73

13 x=0.69 y=3.96

14 x=3.04 y=4.26

15 x=1.01 y=6.75

16 x=3.60 y=6.67

17 x=4.53 y=7.70

18 x=6.13 y=7.31

19 x=4.43 y=9.05

20 x=4.12 y=10.95