HCD Exam 3 Questions With Correct
Answers
This is what you get when you square the correlation coefficient. - CORRECT
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ANSWER✔✔-Coefficient of determination | |
This is how we would interpret the correlation coefficient of r=9 - CORRECT
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ANSWER✔✔-very strong positive correlation | | |
What we need to run in Excel to obtain correlation coefficients between more
| | | | | | | | | | | | |
than two variables - CORRECT ANSWER✔✔-the data analysis toolpak for
| | | | | | | | | |
correlation
This is what we call the amount of variation in y that is not explained by x -
| | | | | | | | | | | | | | | | | |
CORRECT ANSWER✔✔-The coefficient of alienation
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How can we determine the significance of the correlation coefficient? - CORRECT
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ANSWER✔✔-Use a critical value table (B. 4 in text) | | | | | | | |
The test statistic for analysis of variance is... - CORRECT ANSWER✔✔-F ratio `
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In ANOVA, what hypothesis states there is no difference between the means of
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the groups. - CORRECT ANSWER✔✔-null hypothesis
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, The effect observed between two independent variables on a dependent
| | | | | | | | | |
variable. - CORRECT ANSWER✔✔-an interaction effect
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Test run to determine if the effects of gender and caffeine (before/after) on test
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performance - CORRECT ANSWER✔✔-ANOVA: two-factor with replication
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To determine whether effects are significant when reviewing ANOVA output in
| | | | | | | | | | |
Excel - CORRECT ANSWER✔✔-- Compare the p value to alpha /significance level
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- Compare the F test statistic to the F critical value
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This is the null hypothesis for linear regression - CORRECT ANSWER✔✔-The slope
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=0
| |
The value of a perfect indirect correlation - CORRECT ANSWER✔✔--1
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This formula is used to predict the dependent variable value from an
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independent variable value - CORRECT ANSWER✔✔-y = intercept + slope*x
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The error measures how much each data point (on average) differs from the
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predicted data point - CORRECT ANSWER✔✔-standard error of the estimate
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for every one unit increase In the x, there is a corresponding __________
| | | | | | | | | | | | |
increase/reduction in the y - CORRECT ANSWER✔✔-interpreting linear regression | | | | | | | |
|result
Answers
This is what you get when you square the correlation coefficient. - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-Coefficient of determination | |
This is how we would interpret the correlation coefficient of r=9 - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-very strong positive correlation | | |
What we need to run in Excel to obtain correlation coefficients between more
| | | | | | | | | | | | |
than two variables - CORRECT ANSWER✔✔-the data analysis toolpak for
| | | | | | | | | |
correlation
This is what we call the amount of variation in y that is not explained by x -
| | | | | | | | | | | | | | | | | |
CORRECT ANSWER✔✔-The coefficient of alienation
| | | |
How can we determine the significance of the correlation coefficient? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-Use a critical value table (B. 4 in text) | | | | | | | |
The test statistic for analysis of variance is... - CORRECT ANSWER✔✔-F ratio `
| | | | | | | | | | | |
In ANOVA, what hypothesis states there is no difference between the means of
| | | | | | | | | | | | |
the groups. - CORRECT ANSWER✔✔-null hypothesis
| | | | |
, The effect observed between two independent variables on a dependent
| | | | | | | | | |
variable. - CORRECT ANSWER✔✔-an interaction effect
| | | | |
Test run to determine if the effects of gender and caffeine (before/after) on test
| | | | | | | | | | | | | |
performance - CORRECT ANSWER✔✔-ANOVA: two-factor with replication
| | | | | |
To determine whether effects are significant when reviewing ANOVA output in
| | | | | | | | | | |
Excel - CORRECT ANSWER✔✔-- Compare the p value to alpha /significance level
| | | | | | | | | | |
- Compare the F test statistic to the F critical value
| | | | | | | | | |
This is the null hypothesis for linear regression - CORRECT ANSWER✔✔-The slope
| | | | | | | | | | |
=0
| |
The value of a perfect indirect correlation - CORRECT ANSWER✔✔--1
| | | | | | | | |
This formula is used to predict the dependent variable value from an
| | | | | | | | | | | |
independent variable value - CORRECT ANSWER✔✔-y = intercept + slope*x
| | | | | | | | |
The error measures how much each data point (on average) differs from the
| | | | | | | | | | | | |
predicted data point - CORRECT ANSWER✔✔-standard error of the estimate
| | | | | | | | |
for every one unit increase In the x, there is a corresponding __________
| | | | | | | | | | | | |
increase/reduction in the y - CORRECT ANSWER✔✔-interpreting linear regression | | | | | | | |
|result
