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.

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

Chapter5: A Survey Of Other Common Functions

Section5.6: Higher-degree Polynomials And Rational Functions

Problem 1TU: The following fictitious table shows kryptonite price, in dollar per gram, t years after 2006. t=...

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The following fictitious table shows kryptonite price, in dollar per gram, t years after 2006. t= Years since 2006 0 1 2 3 4 5 6 7 8 9 10 K= Price 56 51 50 55 58 52 45 43 44 48 51 Make a quartic model of these data. Round the regression parameters to two decimal places.
QUESTION 2 XXX Electric Illuminating Company is doing a survey on the relationship between electricity used in kilowatt-hours (thousand) and the number of rooms in a private single-family residence. A random sample of 10 homes was selected and the electricity consumption recorded as below. ii. Find a suitable linear regression equation ? = ? + ??. iii. Determine the number of kilowatt-hours (thousand) for an eleven-room residence.
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Question 4 B i-iii Good Day , I hope you are keeping well and safe. Please assit with the following question. b) Finally, the researcher is interested in examining the regression model for knowledge, attitude and practices towards the COFLU-20. The following model was developed to forecast individual practices towards COFLU-20 using knowledge and attitude scores. P = α + β K + δ A where P = Practice towards COFLU-20 score K = Knowledge towards COFLU-20 score A = Attitude towards COFLU-20 score The data are processed using MINITAB and the output in Exhibit 1 below was obtained: Exhibit 1 The regression equation is ************ Predictor Coef SE t-ratio P Constant 4.755 0.462 10.282 0 Knowledge 0.8 0.039 2.055 0.041 Attitude 0.024 0.6 0.393 0.695 R-sq = 81.5% Analysis of Variance SOURCE DF SS MS F P Regression 2 38.06 19.03 2.284 0.104 Error 297 2474.887 8.333 Total 299…
Ch 13. 7: Refer to the Lincolnville School District bus data. First, add a variable to change the type of engine (diesel or gasoline) to a qualitative variable. If the engine type is diesel, then set the qualitative variable to 0. If the engine type is gasoline, then set the qualitative variable to 1. Develop a regression equation using statistical software with maintenance cost as the dependent variable and age, odometer miles, miles since last maintenance, and engine type as the independent variables.
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