College Algebra Essentials
1st Edition
ISBN: 9780078035616
Author: Julie Miller
Publisher: MCG
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Chapter 5.2, Problem 55PE
(a)
To determine
To calculate: The model
| Living Area |
Lot Size (acres) |
Selling Price |
(b)
To determine
To calculate: The selling price, if home is
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A candy bar manufacturer is interested in trying to estimate how sales are influenced by the price of their product. To do this, the company randomly chooses 6 small cities and offers the candy bar at different prices. Using candy bar sales as the dependent variable, the company will conduct a simple linear regression on the data below:
City
Price ($)
Sales
River City
1.30
100
Hudson
1.60
90
Ellsworth
1.80
90
Prescott
2.00
40
Rock Elm
2.40
38
Stillwater
2.90
32
What is the coefficient of correlation for these data?
-0.7839
0.8854
0.7839
-0.8854
Armer Company is accumulating data to use in preparing its annual profit plan for the coming year. The cost behavior pattern of the maintenance costs must be determined. The accounting staff has suggested the use of linear regression to derive an equation for maintenance hours and costs. Data regarding the maintenance hours and costs for the last year and the results of the regression analysis follow:
Month
Maintenance Cost
Machine Hours
Jan.
$
4,200
480
Feb.
3,000
320
Mar.
3,600
400
Apr.
2,820
300
May
4,350
500
June
2,960
310
July
3,030
320
Aug.
4,470
520
Sept.
4,260
490
Oct.
4,050
470
Nov.
3,300
350
Dec.
3,160
340
Sum
$
43,200
4,800
Average
$
3,600
$
400
Average cost per hour
$
9.00
a (intercept)
$
684.65
b (coefficient)
7.2884
Standard error of the estimate
34.469
R-squared
0.99724
t-value for b
60.105…
Armer Company is accumulating data to use in preparing its annual profit plan for the coming year. The cost behavior pattern of the maintenance costs must be determined. The accounting staff has suggested the use of linear regression to derive an equation for maintenance hours and costs. Data regarding the maintenance hours and costs for the last year and the results of the regression analysis follow:
Month
Maintenance Cost
Machine Hours
Jan.
$
4,200
480
Feb.
3,000
320
Mar.
3,600
400
Apr.
2,820
300
May
4,350
500
June
2,960
310
July
3,030
320
Aug.
4,470
520
Sept.
4,260
490
Oct.
4,050
470
Nov.
3,300
350
Dec.
3,160
340
Sum
$
43,200
4,800
Average
$
3,600
$
400
Average cost per hour
$
9.00
a (intercept)
$
684.65
b (coefficient)
7.2884
Standard error of the estimate
34.469
R-squared
0.99724
t-value for b
60.105…
Chapter 5 Solutions
College Algebra Essentials
Ch. 5.1 - Skill Practice 1 Determine if the ordered pair is...Ch. 5.1 - Skill Practice 2 Solve the system by using the...Ch. 5.1 - Prob. 3SPCh. 5.1 - Prob. 4SPCh. 5.1 - Prob. 5SPCh. 5.1 - Prob. 6SPCh. 5.1 - Prob. 7SPCh. 5.1 - Prob. 8SPCh. 5.1 - Prob. 1PECh. 5.1 - Prob. 2PE
Ch. 5.1 - Prob. 3PECh. 5.1 - Prob. 4PECh. 5.1 - Prob. 5PECh. 5.1 - Prob. 6PECh. 5.1 - Prob. 7PECh. 5.1 - Prob. 8PECh. 5.1 - Prob. 9PECh. 5.1 - Prob. 10PECh. 5.1 - Prob. 11PECh. 5.1 - Prob. 12PECh. 5.1 - Prob. 13PECh. 5.1 - Prob. 14PECh. 5.1 - Prob. 15PECh. 5.1 - Prob. 16PECh. 5.1 - Prob. 17PECh. 5.1 - Prob. 18PECh. 5.1 - Prob. 19PECh. 5.1 - Objective 2: Solve Systems of Linear Equations in...Ch. 5.1 - Prob. 21PECh. 5.1 - Prob. 22PECh. 5.1 - Prob. 23PECh. 5.1 - Prob. 24PECh. 5.1 - For Exercises 21-28, solve the system of equations...Ch. 5.1 - Prob. 26PECh. 5.1 - Prob. 27PECh. 5.1 - Prob. 28PECh. 5.1 - Prob. 29PECh. 5.1 - Prob. 30PECh. 5.1 - Prob. 31PECh. 5.1 - Prob. 32PECh. 5.1 - Prob. 33PECh. 5.1 - Prob. 34PECh. 5.1 - Prob. 35PECh. 5.1 - Prob. 36PECh. 5.1 - Prob. 37PECh. 5.1 - Prob. 38PECh. 5.1 - Prob. 39PECh. 5.1 - Prob. 40PECh. 5.1 - Prob. 41PECh. 5.1 - Prob. 42PECh. 5.1 - Prob. 43PECh. 5.1 - Prob. 44PECh. 5.1 - Prob. 45PECh. 5.1 - Prob. 46PECh. 5.1 - Prob. 47PECh. 5.1 - Prob. 48PECh. 5.1 - Prob. 49PECh. 5.1 - Prob. 50PECh. 5.1 - Prob. 51PECh. 5.1 - Prob. 52PECh. 5.1 - Prob. 53PECh. 5.1 - Prob. 54PECh. 5.1 - Prob. 55PECh. 5.1 - Prob. 56PECh. 5.1 - Prob. 57PECh. 5.1 - Prob. 58PECh. 5.1 - Prob. 59PECh. 5.1 - Prob. 60PECh. 5.1 - Prob. 61PECh. 5.1 - Prob. 62PECh. 5.1 - Prob. 63PECh. 5.1 - Prob. 64PECh. 5.1 - Prob. 65PECh. 5.1 - Prob. 66PECh. 5.1 - Prob. 67PECh. 5.1 - Prob. 68PECh. 5.1 - Prob. 69PECh. 5.1 - Prob. 70PECh. 5.1 - Prob. 71PECh. 5.1 - Prob. 72PECh. 5.1 - Prob. 73PECh. 5.1 - Prob. 74PECh. 5.1 - Prob. 75PECh. 5.1 - Prob. 76PECh. 5.1 - Prob. 77PECh. 5.1 - Prob. 78PECh. 5.1 - Prob. 79PECh. 5.1 - Prob. 80PECh. 5.1 - Prob. 81PECh. 5.1 - Prob. 82PECh. 5.1 - Prob. 83PECh. 5.1 - Shelia swam 1 mi and ran 6 mi in a total of 1 hr...Ch. 5.1 - Prob. 85PECh. 5.1 - Prob. 86PECh. 5.1 - Prob. 87PECh. 5.1 - Prob. 88PECh. 5.1 - Prob. 89PECh. 5.1 - Prob. 90PECh. 5.1 - Prob. 91PECh. 5.1 - Prob. 92PECh. 5.1 - Prob. 93PECh. 5.1 - Prob. 94PECh. 5.1 - Prob. 95PECh. 5.1 - Prob. 96PECh. 5.1 - Prob. 97PECh. 5.1 - Prob. 98PECh. 5.1 - Prob. 99PECh. 5.2 - Prob. 1SPCh. 5.2 - Prob. 2SPCh. 5.2 - Prob. 3SPCh. 5.2 - Prob. 4SPCh. 5.2 - Prob. 5SPCh. 5.2 - Prob. 6SPCh. 5.2 - Prob. 7SPCh. 5.2 - Prob. 1PECh. 5.2 - Prob. 2PECh. 5.2 - Prob. 3PECh. 5.2 - Prob. 4PECh. 5.2 - Prob. 5PECh. 5.2 - Prob. 6PECh. 5.2 - Prob. 7PECh. 5.2 - Prob. 8PECh. 5.2 - Prob. 9PECh. 5.2 - Prob. 10PECh. 5.2 - Prob. 11PECh. 5.2 - Prob. 12PECh. 5.2 - Prob. 13PECh. 5.2 - Prob. 14PECh. 5.2 - Prob. 15PECh. 5.2 - Prob. 16PECh. 5.2 - Prob. 17PECh. 5.2 - Prob. 18PECh. 5.2 - Prob. 19PECh. 5.2 - Prob. 20PECh. 5.2 - Prob. 21PECh. 5.2 - Prob. 22PECh. 5.2 - Prob. 23PECh. 5.2 - Prob. 24PECh. 5.2 - Prob. 25PECh. 5.2 - Prob. 26PECh. 5.2 - Prob. 27PECh. 5.2 - Prob. 28PECh. 5.2 - Prob. 29PECh. 5.2 - Prob. 30PECh. 5.2 - Prob. 31PECh. 5.2 - Prob. 32PECh. 5.2 - Prob. 33PECh. 5.2 - Prob. 34PECh. 5.2 - Prob. 35PECh. 5.2 - Prob. 36PECh. 5.2 - Prob. 37PECh. 5.2 - Prob. 38PECh. 5.2 - Prob. 39PECh. 5.2 - Prob. 40PECh. 5.2 - Prob. 41PECh. 5.2 - 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Prob. 15PECh. 5.3 - Prob. 16PECh. 5.3 - Prob. 17PECh. 5.3 - Prob. 18PECh. 5.3 - Prob. 19PECh. 5.3 - Prob. 20PECh. 5.3 - Prob. 21PECh. 5.3 - Prob. 22PECh. 5.3 - Prob. 23PECh. 5.3 - Prob. 24PECh. 5.3 - Prob. 25PECh. 5.3 - Prob. 26PECh. 5.3 - Prob. 27PECh. 5.3 - Prob. 28PECh. 5.3 - Prob. 29PECh. 5.3 - Prob. 30PECh. 5.3 - Prob. 31PECh. 5.3 - Prob. 32PECh. 5.3 - Prob. 33PECh. 5.3 - Prob. 34PECh. 5.3 - Prob. 35PECh. 5.3 - Prob. 36PECh. 5.3 - Prob. 37PECh. 5.3 - Prob. 38PECh. 5.3 - Prob. 39PECh. 5.3 - Prob. 40PECh. 5.3 - Prob. 41PECh. 5.3 - Prob. 42PECh. 5.3 - Prob. 43PECh. 5.3 - Prob. 44PECh. 5.3 - Prob. 45PECh. 5.3 - Prob. 46PECh. 5.3 - Prob. 47PECh. 5.3 - Prob. 48PECh. 5.3 - Prob. 49PECh. 5.3 - Prob. 50PECh. 5.3 - Prob. 51PECh. 5.3 - Prob. 52PECh. 5.3 - Prob. 53PECh. 5.3 - Prob. 54PECh. 5.3 - Prob. 55PECh. 5.3 - Prob. 56PECh. 5.3 - Prob. 57PECh. 5.3 - Prob. 58PECh. 5.3 - Prob. 59PECh. 5.3 - Prob. 60PECh. 5.3 - Prob. 61PECh. 5.3 - Prob. 62PECh. 5.4 - Prob. 1SPCh. 5.4 - Prob. 2SPCh. 5.4 - Prob. 3SPCh. 5.4 - Prob. 4SPCh. 5.4 - Prob. 5SPCh. 5.4 - Prob. 1PECh. 5.4 - Prob. 2PECh. 5.4 - Prob. 3PECh. 5.4 - Prob. 4PECh. 5.4 - Prob. 5PECh. 5.4 - Prob. 6PECh. 5.4 - Prob. 7PECh. 5.4 - Prob. 8PECh. 5.4 - Prob. 9PECh. 5.4 - Prob. 10PECh. 5.4 - Prob. 11PECh. 5.4 - Prob. 12PECh. 5.4 - Prob. 13PECh. 5.4 - Prob. 14PECh. 5.4 - Prob. 15PECh. 5.4 - Prob. 16PECh. 5.4 - Prob. 17PECh. 5.4 - Prob. 18PECh. 5.4 - Prob. 19PECh. 5.4 - Prob. 20PECh. 5.4 - Prob. 21PECh. 5.4 - Prob. 22PECh. 5.4 - Prob. 23PECh. 5.4 - Prob. 24PECh. 5.4 - Prob. 25PECh. 5.4 - Prob. 26PECh. 5.4 - Prob. 27PECh. 5.4 - Prob. 28PECh. 5.4 - Prob. 29PECh. 5.4 - Prob. 30PECh. 5.4 - Prob. 31PECh. 5.4 - Prob. 32PECh. 5.4 - Prob. 33PECh. 5.4 - Prob. 34PECh. 5.4 - Prob. 35PECh. 5.4 - Prob. 36PECh. 5.4 - Prob. 37PECh. 5.4 - Prob. 38PECh. 5.4 - Prob. 39PECh. 5.4 - Prob. 40PECh. 5.4 - Prob. 41PECh. 5.4 - Prob. 42PECh. 5.4 - Prob. 43PECh. 5.4 - Prob. 44PECh. 5.4 - Prob. 45PECh. 5.4 - Objective 3: Use Nonlinear Systems of Equations to...Ch. 5.4 - Prob. 47PECh. 5.4 - Objective 3: Use Nonlinear Systems of Equations to...Ch. 5.4 - Prob. 49PECh. 5.4 - Prob. 50PECh. 5.4 - Prob. 51PECh. 5.4 - Prob. 52PECh. 5.4 - Prob. 53PECh. 5.4 - Prob. 54PECh. 5.4 - Prob. 55PECh. 5.4 - Prob. 56PECh. 5.4 - Prob. 57PECh. 5.4 - Prob. 58PECh. 5.4 - Prob. 59PECh. 5.4 - Prob. 60PECh. 5.4 - Prob. 61PECh. 5.4 - Prob. 62PECh. 5.4 - Prob. 63PECh. 5.4 - Prob. 64PECh. 5.4 - Prob. 65PECh. 5.4 - Prob. 66PECh. 5.4 - Prob. 67PECh. 5.4 - Prob. 68PECh. 5.4 - Prob. 69PECh. 5.4 - Prob. 70PECh. 5.4 - Prob. 71PECh. 5.4 - Prob. 72PECh. 5.4 - Prob. 73PECh. 5.4 - Prob. 74PECh. 5.4 - Prob. 75PECh. 5.4 - Prob. 76PECh. 5.4 - Prob. 77PECh. 5.4 - Prob. 78PECh. 5.4 - Prob. 79PECh. 5.4 - Prob. 80PECh. 5.5 - Prob. 1SPCh. 5.5 - Prob. 2SPCh. 5.5 - Prob. 3SPCh. 5.5 - Prob. 4SPCh. 5.5 - Prob. 5SPCh. 5.5 - Prob. 6SPCh. 5.5 - Prob. 7SPCh. 5.5 - Prob. 1PECh. 5.5 - Prob. 2PECh. 5.5 - Prob. 3PECh. 5.5 - Prob. 4PECh. 5.5 - Prob. 5PECh. 5.5 - Prob. 6PECh. 5.5 - Prob. 7PECh. 5.5 - Prob. 8PECh. 5.5 - Prob. 9PECh. 5.5 - Prob. 10PECh. 5.5 - Prob. 11PECh. 5.5 - Prob. 12PECh. 5.5 - Prob. 13PECh. 5.5 - Prob. 14PECh. 5.5 - Prob. 15PECh. 5.5 - Prob. 16PECh. 5.5 - Prob. 17PECh. 5.5 - Prob. 18PECh. 5.5 - Prob. 19PECh. 5.5 - Prob. 20PECh. 5.5 - Prob. 21PECh. 5.5 - Prob. 22PECh. 5.5 - Prob. 23PECh. 5.5 - Prob. 24PECh. 5.5 - Prob. 25PECh. 5.5 - Prob. 26PECh. 5.5 - Prob. 27PECh. 5.5 - Prob. 28PECh. 5.5 - Prob. 29PECh. 5.5 - Prob. 30PECh. 5.5 - Prob. 31PECh. 5.5 - Prob. 32PECh. 5.5 - Prob. 33PECh. 5.5 - Prob. 34PECh. 5.5 - Prob. 35PECh. 5.5 - Prob. 36PECh. 5.5 - Prob. 37PECh. 5.5 - Prob. 38PECh. 5.5 - Prob. 39PECh. 5.5 - Prob. 40PECh. 5.5 - Prob. 41PECh. 5.5 - Prob. 42PECh. 5.5 - Prob. 43PECh. 5.5 - Prob. 44PECh. 5.5 - Prob. 45PECh. 5.5 - Prob. 46PECh. 5.5 - Prob. 47PECh. 5.5 - Prob. 48PECh. 5.5 - Prob. 49PECh. 5.5 - Prob. 50PECh. 5.5 - Prob. 51PECh. 5.5 - Prob. 52PECh. 5.5 - Prob. 53PECh. 5.5 - Prob. 54PECh. 5.5 - Prob. 55PECh. 5.5 - Prob. 56PECh. 5.5 - Prob. 57PECh. 5.5 - Prob. 58PECh. 5.5 - Prob. 59PECh. 5.5 - Prob. 60PECh. 5.5 - Prob. 61PECh. 5.5 - Prob. 62PECh. 5.5 - Prob. 63PECh. 5.5 - Prob. 64PECh. 5.5 - Prob. 65PECh. 5.5 - Prob. 66PECh. 5.5 - Prob. 67PECh. 5.5 - Prob. 68PECh. 5.5 - Prob. 69PECh. 5.5 - Prob. 70PECh. 5.5 - Prob. 71PECh. 5.5 - Prob. 72PECh. 5.5 - Prob. 73PECh. 5.5 - Prob. 74PECh. 5.5 - Prob. 75PECh. 5.5 - Prob. 76PECh. 5.5 - Prob. 77PECh. 5.5 - Prob. 78PECh. 5.5 - Prob. 79PECh. 5.5 - A coordinate system is placed at the center of a...Ch. 5.5 - Prob. 81PECh. 5.5 - Prob. 82PECh. 5.5 - Prob. 83PECh. 5.5 - Prob. 84PECh. 5.5 - Prob. 85PECh. 5.5 - Prob. 86PECh. 5.5 - Prob. 87PECh. 5.5 - Prob. 88PECh. 5.6 - Prob. 1SPCh. 5.6 - Prob. 2SPCh. 5.6 - Prob. 3SPCh. 5.6 - Prob. 4SPCh. 5.6 - Prob. 1PECh. 5.6 - Prob. 2PECh. 5.6 - Prob. 3PECh. 5.6 - Prob. 4PECh. 5.6 - Prob. 5PECh. 5.6 - Prob. 6PECh. 5.6 - Prob. 7PECh. 5.6 - Prob. 8PECh. 5.6 - Concept Connections The process that maximizes or...Ch. 5.6 - Prob. 10PECh. 5.6 - Prob. 11PECh. 5.6 - Prob. 12PECh. 5.6 - Prob. 13PECh. 5.6 - Prob. 14PECh. 5.6 - Prob. 15PECh. 5.6 - Prob. 16PECh. 5.6 - Prob. 17PECh. 5.6 - Prob. 18PECh. 5.6 - Prob. 19PECh. 5.6 - Prob. 20PECh. 5.6 - Prob. 21PECh. 5.6 - Prob. 22PECh. 5.6 - Prob. 23PECh. 5.6 - Prob. 24PECh. 5.6 - Prob. 25PECh. 5.6 - Prob. 26PECh. 5.6 - Prob. 27PECh. 5.6 - Prob. 28PECh. 5.6 - Prob. 29PECh. 5.6 - Prob. 30PECh. 5.6 - Prob. 31PECh. 5.6 - Prob. 32PECh. 5.6 - Prob. 33PECh. 5.6 - Prob. 34PECh. 5.6 - A manufacturer produces two models of a gas grill....Ch. 5.6 - Prob. 36PECh. 5.6 - Prob. 37PECh. 5.6 - Prob. 38PECh. 5.6 - Prob. 39PECh. 5.6 - Prob. 40PECh. 5.6 - Prob. 41PECh. 5.6 - Prob. 42PECh. 5 - Prob. 1RECh. 5 - Prob. 2RECh. 5 - Prob. 3RECh. 5 - Prob. 4RECh. 5 - Prob. 5RECh. 5 - Prob. 6RECh. 5 - Prob. 7RECh. 5 - Prob. 8RECh. 5 - Prob. 9RECh. 5 - Prob. 10RECh. 5 - Prob. 11RECh. 5 - Prob. 12RECh. 5 - Prob. 13RECh. 5 - Prob. 14RECh. 5 - Prob. 15RECh. 5 - Prob. 16RECh. 5 - Prob. 17RECh. 5 - Prob. 18RECh. 5 - Prob. 19RECh. 5 - Prob. 20RECh. 5 - Prob. 21RECh. 5 - Prob. 22RECh. 5 - Prob. 23RECh. 5 - 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