QUESTION 3 The electric power consumed each month by a chemical plant is thought to be related to the average ambient temperaturex1, the number of days in the month x), the average product purity x3, and the tons of product produced x4. The past year's historical data are available and are presented in the following table. 240 25 24 91 100 236 290 274 31 45 21 90 95 110 24 88 60 25 87 88 301 65 25 91 94 316 72 26 25 25 94 87 99 97 96 300 80 296 84 75 86 88 267 276 24 110 60 25 91 105 288 50 25 90 100 261 38 23 89 98 If y= ao+a1X1+a2x2+A3X3+ a4X4 represents the regression model. What is the value of a4? Use 4 decimal places.
QUESTION 3 The electric power consumed each month by a chemical plant is thought to be related to the average ambient temperaturex1, the number of days in the month x), the average product purity x3, and the tons of product produced x4. The past year's historical data are available and are presented in the following table. 240 25 24 91 100 236 290 274 31 45 21 90 95 110 24 88 60 25 87 88 301 65 25 91 94 316 72 26 25 25 94 87 99 97 96 300 80 296 84 75 86 88 267 276 24 110 60 25 91 105 288 50 25 90 100 261 38 23 89 98 If y= ao+a1X1+a2x2+A3X3+ a4X4 represents the regression model. What is the value of a4? Use 4 decimal places.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 4SGR
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Transcribed Image Text:QUESTION 3
The electric power consumed each month by a chemical plant is thought to be related to the average ambient temperature x1, the number of days in the month x), the average product
purity x3, and the tons of product produced x4. The past year's historical data are available and are presented in the following table.
240
25
24
91
100
31
236
290
21
90
95
110
45
24
88
274
60
25
87
88
301
65
25
91
94
316
72
94
26
25
25
99
97
300
80
87
296
84
86
96
267
75
24
88
110
276
60
25
91
105
288
261
50
25
90
100
38
23
89
98
If y= ao+@1X1+a2x2+@3X3+ a4X4 represents the regression model. What is the value of a4? Use 4 decimal places.
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