Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Significant test for slope

The personnel director from electronics associates developed the following estimated regression equation relating an employee's score on a job satisfaction test to length of service and wage rate.

Y = 14.4 - 8.69x1 + 13.52x2

Where
x1 = length of service (years)
x2 = wage rate (dollars)
y = job satisfaction test score (higher score indicate greater job satisfaction)

A portion of the Minitab computer output follows. The regression equation is 
Y = 14.4 - 8.69 X1 + 13.52 X2

Predictor

Coef

SE Coef

T

Constant

14.448

8.191

1.76

X1

 

1.555

 

X2

13.517

2.085

 

 

S = 3.773

R-sq = _____%

R - sq (adj) = _____%

Analysis of Variance

SOURCE

DF

SS

MS

F

Regression

2

 

 

 

Residual Error

 

71.17

 

 

Total

7

720.0

 

 

a. Complete the missing entries in this output (to 2 decimals).
Estimated Regression Equation

Predictor

Coefficient

SE Coefficient

T

Constant

14.448

8.191

1.76

X1

 

1.555

 

X2

13.517

2.085

 

R2_____ %
Analysis of Variance

Source

DF

SS

MS

F

Regression

2

 

324.415

22.79

Residual Error

5

71.17

14.234

 

Total

7

720.0

 

 


b. Using α = .05, is a significant relationship present?

c. Did estimated regression equation provide a good fit to the data?

d. Using the t test and α = .05 to test H0: β1 = 0 and β2 = 0
Compute the t test statistic for β1 (to 2 decimals).
What is the conclusion?
figure the t test statistic for β2 (to 2 decimals).
What is the conclusion?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922830

Have any Question? 


Related Questions in Statistics and Probability

Prove that if romeo and juliet are matched to each other

Prove that if Romeo and Juliet are matched to each other under both the men's courtship and the women's courtship algorithms, then they are matched to each other under any stable matching.

Researchers use hierarchical regression cross-lagged panel

Researchers use hierarchical regression, cross-lagged panel designs, and structural equations modeling to partly resolve the problems associated with inferring causality from correlation. a. Describe how each of these an ...

1 when tv advertisements report 2 out of 3 dentists

1. When TV advertisements report, "2 out of 3 dentists surveyed indicated they would recommend Brand X toothpaste to their patients," an informed consumer may question the conclusion because a. the sample was only 5 dent ...

A researcher was interested in the effects of weather on

A researcher was interested in the effects of weather on cognitive performance. He tested participants on either sunny or cloudy days, and obtained the following scores on a 10-item test of cognitive performance. Using t ...

1 what type of sample is used most frequently in behavioral

1. What type of sample is used most frequently in behavioral research? 2. Is it true that valid conclusions cannot be drawn from studies that are conducted on convenience samples? Why or why not?

You are playing blackjack in a casino the casino is using a

You are playing blackjack in a casino. The casino is using a single, 52 card deck. Shuffling the deck takes time. So rather than shuffling the deck after each hand, the casino deals three hands before shuffling. The used ...

1 does the average iq for residents of a state vary with

1. Does the average IQ for residents of a state vary with the amount that the state spends on education? Seven of the 50 U.S. states were randomly selected. The amount that each spent per student (in thousands of dollars ...

1 explain why the byzantium empire went in a different

1. Explain why the Byzantium Empire went in a different direction from Europe (even though both were Christian) after the breakup of Rome. This will require some examination of historical and geographical influences, jus ...

Discuss the changes to european imperialism between the

Discuss the changes to European imperialism between the World Wars.

A reasearcher studying correctional treatment on 192 sex

A reasearcher studying correctional treatment on 192 sex offenders composed of 10 females and 182 males finds that 11 males along with 1 female had reoffended. He then calculated the percentages and find that 10% of fema ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro