ABC Company used linear regression theory to develop the slope and intercept values for a forecast...
ABC Company used linear regression theory to develop the slope and intercept values for a forecast equation in Y (sales volume) and X (number of customers) using the data below (sales in thousands of dollars; customers in hundreds). Forecast the sales volume when the when the number of customers is 22. a = –0.158; b = 0.131
|
USTOMERS(X) |
10 |
12 |
16 |
15 |
14 |
17 |
20 |
|
SALE VOLUME(Y) |
1.0 |
1.4 |
1.9 |
2.0 |
1.8 |
2.1 |
2.3 |
Homework Answers
Given, Regression equation Y = a+bX
Y = -0.158 + 0.131 X
When the customers are 22, X=22
Sales Y = -0.158+ 0.131*22 = 2.724
Sales at x=22 is Y = 2.724
Add Answer to:
ABC Company used linear regression theory to develop the slope
and intercept values for a forecast...
2. Determine slope and y-intercept for the regression equation ? 3. Provide an interpretation for the...
2. Determine slope and
y-intercept for the regression equation ?
3. Provide an interpretation for the value of the slope?
4. Predict the MPG for a sedan with a 2.5-liter engine
5. Calculate the SST
6. Partition the SST into the SSR and the SSE
Suppose an environmental agency would like to investigate the relationship between the engine size of sedans and the miles per gallon (MPG) they get. The accompanying table shows the engine size in cubic liters and...
In a simple linear regression model, the intercept of the regression line measures
QUESTION 1In a simple linear regression model, the intercept of the regression line measuresa.the change in Y per unit change in X.b.the change in X per unit change in Y.c.the expected change in Y per unit change in X.d.the expected change in X per unit change in Y.e.the value of Y when X equals 0.f.the value of X when Y equals 0.g.the average value of Y when X equals 0.h.the average value of X when Y equals 0.QUESTION 2In a...
1. If an estimated regression line has a y-intercept of 10 and a slope of 4,...
1. If an estimated regression line has a y-intercept of 10 and a slope of 4, then when x = 2 the actual value ofy is: а. 18 b. 15 с. 14 d. unknown 2. Given the least squares regression line v = 5- 2x: a. the relationship between x and y is positive b. the relationship between x and y is negative. c. asx decreases, so does y. d. None of these choices. 3. A regression analysis between weight...
If you were to develop a linear regression equation that uses autonomy at work to predict...
If you were to develop a linear regression equation that uses autonomy at work to predict job satisfaction, what would be the Y-Intercept (a) of the regression equation? Use the slope (b) obtained from the previous question to answer this question. Autonomy Job satisfaction (Y) n 8 8 Mean My=4 My 7 Variability SSX-28 SSY - 156 SP-56 Pearson r.85 -10 1 2 pts Question 43 Correlation' is to 'regression' as significance to non significant 'samples are to populations relationship...
26. A lawn and garden centre intends to use sales of lawn fertilizer to predict lawn...
26. A lawn and garden centre intends to use sales of lawn fertilizer to predict lawn mower sales. The store manager wishes to determine the relationship between fertilizer and mower sales. The pertinent data are Number Number Fertilizer of SalesMowers Fertilizer of Sales Mowers Period (tonnes) Sold Perlod (tonnes) Sold 1.6 1.3 1.8 2.0 10 1.3 10 10 1.9 1.4 4 1.6 1.5 13 10 a. Determine the correlation between the two variables. Does it appear that a relationship between...
The coefficient of linear correlation between the sales and the number of employees is found to...
The coefficient of linear correlation between the sales and the number of employees is found to be r=-0.66. Which of the following values cannot be the slope of the line of the linear regression? -2.7 . -1.8 -1.9 1.5 QUESTION 28 Management of a soft-drink bottling company wants to develop a method for allocating delivery costs to customers. The manager wants to analyze the relation between the time required to unload the cases of soft drink at the delivery point...
(I) Let's start with very simple data table 1.0 2.0 3.0 4.0 5.0 6.0 -1 ±...
(I) Let's start with very simple data table 1.0 2.0 3.0 4.0 5.0 6.0 -1 ± 1.8 4±2.0 9+ 1.0 14 + 0.8 19 s 0.8 24 + 1.2 2% 1.8 34 ± 2.0 7.0 8.0 9.0 1. Plot a graph of y vs. X on a piece of graph paper 2. Is it a straight line? Draw the best-fit line. 3. Compute the slope and y-intercept for this line. Write the equation for y in terms of x using...
1. Develop the simple linear regression equation to predict repair time given the number of months...
1. Develop the simple linear regression equation to predict
repair time given the number of months since
the last maintenance service, and use the results to check the
conditions necessary for valid inference in
regression, and to test the hypothesis that no relationship exists
between repair time and the number of
months since the last maintenance service at the 0.05 level of
significance. What is the interpretation of
this relationship? What does the coefficient of determination tell
you about this...
Using your simple linear regression model, what is the value for the slope for this regression...
Using your simple linear regression model, what is the value
for the slope for this regression model?
Take a Test-Mohammad (2) Exploring bivariatenu x+ Nick James . YouTube × Co https://www.mathxl.com/Student/PlayerTest.aspx?tesA 11 □ Bunnings Canvas晏Fisher Library Study dates Other bookmarks 21 BUSS1020 Quantitative Business Analysis Nurullah | 5/30/19 4:13 AM Test: Assignment 2 This Question: 1 pt 6 af 20 This Test: 20 pts possible A national restaurant chain is composed of 6500 restaurants, sach of which is located in...
We consider a multiple linear regression model with LIFE (y) as the response variable, and MALE (...
We consider a multiple linear regression model with LIFE (y) as
the response variable, and MALE (x1), BIRTH (x2), DIVO (x3), BEDS
(x4), EDUC (x5), and INCO (x6), as predictors.
"STATE" "MALE" "BIRTH" "DIVO" "BEDS" "EDUC" "INCO" "LIFE"
AK 119.1 24.8 5.6 603.3 14.1 4638 69.31
AL 93.3 19.4 4.4 840.9 7.8 2892 69.05
AR 94.1 18.5 4.8 569.6 6.7 2791 70.66
AZ 96.8 21.2 7.2 536.0 12.6 3614 70.55
CA 96.8 18.2 5.7 649.5 13.4 4423 71.71
CO 97.5...
2. Determine slope and
y-intercept for the regression equation ?
3. Provide an interpretation for the value of the slope?
4. Predict the MPG for a sedan with a 2.5-liter engine
5. Calculate the SST
6. Partition the SST into the SSR and the SSE
Suppose an environmental agency would like to investigate the relationship between the engine size of sedans and the miles per gallon (MPG) they get. The accompanying table shows the engine size in cubic liters and...
1. If an estimated regression line has a y-intercept of 10 and a slope of 4, then when x = 2 the actual value ofy is: а. 18 b. 15 с. 14 d. unknown 2. Given the least squares regression line v = 5- 2x: a. the relationship between x and y is positive b. the relationship between x and y is negative. c. asx decreases, so does y. d. None of these choices. 3. A regression analysis between weight...
If you were to develop a linear regression equation that uses autonomy at work to predict job satisfaction, what would be the Y-Intercept (a) of the regression equation? Use the slope (b) obtained from the previous question to answer this question. Autonomy Job satisfaction (Y) n 8 8 Mean My=4 My 7 Variability SSX-28 SSY - 156 SP-56 Pearson r.85 -10 1 2 pts Question 43 Correlation' is to 'regression' as significance to non significant 'samples are to populations relationship...
26. A lawn and garden centre intends to use sales of lawn fertilizer to predict lawn mower sales. The store manager wishes to determine the relationship between fertilizer and mower sales. The pertinent data are Number Number Fertilizer of SalesMowers Fertilizer of Sales Mowers Period (tonnes) Sold Perlod (tonnes) Sold 1.6 1.3 1.8 2.0 10 1.3 10 10 1.9 1.4 4 1.6 1.5 13 10 a. Determine the correlation between the two variables. Does it appear that a relationship between...
The coefficient of linear correlation between the sales and the number of employees is found to be r=-0.66. Which of the following values cannot be the slope of the line of the linear regression? -2.7 . -1.8 -1.9 1.5 QUESTION 28 Management of a soft-drink bottling company wants to develop a method for allocating delivery costs to customers. The manager wants to analyze the relation between the time required to unload the cases of soft drink at the delivery point...
(I) Let's start with very simple data table 1.0 2.0 3.0 4.0 5.0 6.0 -1 ± 1.8 4±2.0 9+ 1.0 14 + 0.8 19 s 0.8 24 + 1.2 2% 1.8 34 ± 2.0 7.0 8.0 9.0 1. Plot a graph of y vs. X on a piece of graph paper 2. Is it a straight line? Draw the best-fit line. 3. Compute the slope and y-intercept for this line. Write the equation for y in terms of x using...
1. Develop the simple linear regression equation to predict
repair time given the number of months since
the last maintenance service, and use the results to check the
conditions necessary for valid inference in
regression, and to test the hypothesis that no relationship exists
between repair time and the number of
months since the last maintenance service at the 0.05 level of
significance. What is the interpretation of
this relationship? What does the coefficient of determination tell
you about this...
Using your simple linear regression model, what is the value
for the slope for this regression model?
Take a Test-Mohammad (2) Exploring bivariatenu x+ Nick James . YouTube × Co https://www.mathxl.com/Student/PlayerTest.aspx?tesA 11 □ Bunnings Canvas晏Fisher Library Study dates Other bookmarks 21 BUSS1020 Quantitative Business Analysis Nurullah | 5/30/19 4:13 AM Test: Assignment 2 This Question: 1 pt 6 af 20 This Test: 20 pts possible A national restaurant chain is composed of 6500 restaurants, sach of which is located in...
We consider a multiple linear regression model with LIFE (y) as
the response variable, and MALE (x1), BIRTH (x2), DIVO (x3), BEDS
(x4), EDUC (x5), and INCO (x6), as predictors.
"STATE" "MALE" "BIRTH" "DIVO" "BEDS" "EDUC" "INCO" "LIFE"
AK 119.1 24.8 5.6 603.3 14.1 4638 69.31
AL 93.3 19.4 4.4 840.9 7.8 2892 69.05
AR 94.1 18.5 4.8 569.6 6.7 2791 70.66
AZ 96.8 21.2 7.2 536.0 12.6 3614 70.55
CA 96.8 18.2 5.7 649.5 13.4 4423 71.71
CO 97.5...
Most questions answered within 3 hours.
-
A) Asha Company completed its inventory count. It arrived at a
total inventory value of
$200,000....
asked 6 minutes ago -
When you move a rope up and down, waves are created. If the
waves pass through...
asked 41 minutes ago -
QUESTION 52
Which of the following is a direct result of scarcity?
A college student misses...
asked 41 minutes ago -
The zero order reaction 2N2O→2N2+O2 has the rate constant k of
7.20×10−3 molL s. If the...
asked 43 minutes ago -
When you borrow money to buy a house, a car, or for some other
purpose, you...
asked 58 minutes ago -
Write a c program that finds the uncommon elements from two
array elements using pointers
only...
asked 1 hour ago -
SQL help:
Design a database diagram for a database that stores information
about the Downloads that...
asked 2 hours ago -
In 1970s and 1980s, molecular biologists discovered that the
hormone testosterone, binds a receptor protein that...
asked 4 hours ago -
january 1 2010 road catering service purchase a piece of
equipment for 58000 which is expected...
asked 4 hours ago -
Explain Mertons concept of anomie is and what the
modes of adaptation to it are?
asked 5 hours ago -
Jamie is doing a survey at her school about whether the students
feel the cafeteria food...
asked 7 hours ago -
How many liters of 0.669 M KOH will be needed to raise the pH of
0.339...
asked 9 hours ago