EBK BUSINESS STATISTICS
7th Edition
ISBN: 9780134462783
Author: STEPHAN
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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This textbook solution is under construction.
Students have asked these similar questions
1. Develop a simple linear regression equation for starting salaries using an independent
variable that has the closest relationship with the salaries. Explain how you chose this
variable.
The following equation is the result of performing a multiple regression analysis:
Job performance = 10 + (5*job knowledge) + (0.7* conscientiousness), where job
knowledge is measured on a scale of 0-5 and conscientiousness is measured on a
scale of 0 to 100. Which of the following conclusions is correct?
!!
O If a person scored 5 on job knowledge and 100 on conscientiousness he or she
would have the maximum predictive score possible
If a person scored 0 on both job knowledge and conscientiousness, his or her
predictive score is 0
ONeither job knowledge nor conscientiousness predicts performance
O Conscientiousness is less important than job knowledge.
Question 3!
For a measuring tool to be usefulitmus be
Louis Katz, a cost accountant at Papalote Plastics, Inc. (PPI), is analyzing the manufacturing costs of a molded plastic telephone handset produced by PPI. Louis's independent variable is production lot size (in 1,000's of units), and his dependent variable is the total cost of the lot (in $100's). Regression analysis of the data yielded the following tables.
Coefficients
Standard Error
t Statistic
p-value
Intercept
3.996
1.161268
3.441065
0.004885
x
0.358
0.102397
3.496205
0.004413
Source
df
SS
MS
F
Se = 0.898
Regression
1
9.858769
9.858769
12.22345
r2 = 0.526341
Residual
11
8.872
0.806545
Total
12
18.73077
Using a = 0.05, Louis should ________________.
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