BUAL 2650 GUPTA EXAM 2 newest actual WITH

BUAL 2650 GUPTA EXAM 2 newest actual WITH questions and 100% ACCURATE SOLUTIONS.

All of the following are assumptions of the error terms in the simple linear regression model except

• error terms have a constant variance
• error terms are dependent on each other
• error terms have a mean of zero
• errors are normally distributed - ---Answers---b. error

terms are dependent on each other

CH 14 Quiz

The ________ measures the strength of the linear relationship between the dependent variable and the independent variable.

• Residual
• correlation coefficient
• distance value
• Y-intercept - ---Answers---b. correlation coefficient

CH 14 Quiz

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In simple regression analysis, the quantity that gives the amount by which Y(dependent variable) changes for a unit change in X (independent variable) is called the ________.

• slope of the regression line
• correlation coefficient
• coefficient of determination
• standard error
• y-intercept of the regression line - ---Answers---a. slope

of the regression line

CH 14 Quiz

A simple regression analysis with 20 observations would yield ________ degrees of freedom error and ________ of freedom total.

• 18, 20
• 18, 19
• 1, 20
• 1, 19
• 19, 20 - ---Answers---b. 18, 19

CH 14 Quiz

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The correlation coefficient may assume any value between

_______.

• 0 and 8
• −1 and 1
• −∞ and ∞
• 0 and 1
• −1 and 0 - ---Answers---b. −1 and 1

CH 14 Quiz

The following results were obtained as part of a simple regression analysis.

r2 = .9162 F statistic from the F table = 3.59 Calculated value of F from the ANOVA table = 81.87

α = .05

p-value = .000

The null hypothesis of no linear relationship between the dependent variable and the independent variable _____

• cannot be tested with the given information
• is not rejected
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