Page 106 - Basic Statistics

101

Worked Example 5.3 :

Here in Table 5.6 is data about the results of environmental studies. The
study measured the 4 variables, namely the concentration of ozone (Y), solar

radiation (X1), temperature (X2), and the wind speed (X3). If the relationship

between the dependent variable ozone and independent variables want to be

investigated by the multiple linear regression models, estimate the linear
regression equation.

Table 5.6 Data about the results of environmental studies

N0 Ozone Radiation Temperature Wind

1 3.45 190 67 7.4
2 3.30 118 72 8.0
3 2.29 149 74 12.6
4 2.62 313 62 11.5
5 2.84 299 65 8.6
6 2.67 99 59 13.8
7 2.00 19 61 20.1
8 2.52 256 69 9.7
9 2.22 290 66 9.2
10 2.41 274 68 10.9
11 2.62 65 58 13.2
12 2.41 334 64 11.5
13 3.24 307 66 12.0
14 1.82 78 57 18.4
15 3.11 322 68 11.5
16 2.22 44 62 9.7
17 1.00 8 59 9.7
18 2.22 320 73 16.6
19 1.59 25 61 9.7
20 3.17 92 61 12.0
21 2.84 13 67 12.0
22 3.56 252 81 14.9
23 4.86 223 79 5.7
24 3.33 279 76 7.4
25 3.07 127 82 9.7
26 4.14 291 90 13.8
27 3.39 323 87 11.5
28 2.84 148 82 8.0
29 2.76 191 77 14.9
30 3.33 284 72 20.7

Worked Solution:

Details of the calculation using the computerized results are presented as

follows.

~~* CHAPTER 5 THE MULTIPLE LINEAR REGRESSION MODEL *~~