1. Whichof the following is used to determine observations that have aninfluenti
ID: 2950526 • Letter: 1
Question
1.
Whichof the following is used to determine observations that have aninfluential effect on the fitted model?
A) Cook's distance statistic
B) Durbin-Watson statistic
C) Variance inflationaryfactor
D) The Cpstatistic
3.
Amicroeconomist wants to determine how corporate sales areinfluenced by capital and wage spending by companies. She proceedsto randomly select 26 large corporations and record information inmillions of dollars. A statistical analyst discovers that capitalspending by corporations has a significant inverse relationshipwith wage spending. What should the microeconomist who developedthis multiple regression model be particularly concerned with?
4.
Excel was used to obtain thefollowing quadratic trend equation:
Sales = 100 - 10X + 15X2.
The data used was from 1989 through 1998, coded 0 to 9. Theforecast for 1999 is __________.
A modelthat can be used to make predictions about long-term future valuesof a time series is:
The Cp statistic isused:
Explanation / Answer
Which of thefollowing is used to determine observations that have aninfluential effect on the fitted model?
A)Cook's distance statistic
B)Durbin-Watson statistic
C)Variance inflationary factor
D)The Cp statistic
3.
A microeconomistwants to determine how corporate sales are influenced by capitaland wage spending by companies. She proceeds to randomly select 26large corporations and record information in millions of dollars. Astatistical analyst discovers that capital spending by corporationshas a significant inverse relationship with wage spending. Whatshould the microeconomist who developed this multiple regressionmodel be particularly concerned with?
4.
Excel was used to obtain thefollowing quadratic trend equation:
Sales = 100 - 10X + 15X2.
The data used was from 1989 through 1998, coded 0 to 9. Theforecast for 1999 is __________.
A model that canbe used to make predictions about long-term future values of a timeseries is:
The Cp statistic isused:
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