
Regression Analysis Concepts
Interactive Video
•
Mathematics
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11th - 12th Grade
•
Practice Problem
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Hard
Thomas White
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary focus of hypothesis tests in regression analysis?
To assess the mode of the dataset
To find the median of the dataset
To calculate the mean of the dataset
To determine the significance of the slope and intercept
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Excel provide in regression output for confidence intervals?
Lower and upper 95% confidence intervals
Only lower 95% confidence interval
Only upper 95% confidence interval
No confidence intervals
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is zero significant in a confidence interval?
It confirms the coefficient is negative
It has no significance
It indicates the coefficient could be zero
It shows the coefficient is positive
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic form of the regression model discussed?
y = gamma + delta x
y = theta + lambda x
y = alpha + beta x
y = beta naught + beta 1 x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the standard error used for in statistics?
To determine the range
To standardize the error based on sample size
To calculate the median
To find the mode
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can linear regression models include besides a straight line?
Only straight lines
Polynomial or multi-linear models
Only quadratic models
Only cubic models
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What distribution is used to calculate confidence intervals?
T-distribution
Normal distribution
Binomial distribution
Poisson distribution
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