1. The linear regression line indicates __________. a the strength of a relation
ID: 3068504 • Letter: 1
Question
1. The linear regression line indicates __________.
a
the strength of a relationship
b
whether a relationship exists
c
the direction of a relationship
d
the best-fitting straight line in a linear relationship
2.
Which of the following statements about the t-statistic in regression is not true?
a
The t-statistic tests whether the regression coefficient, b, is equal to 0.
b
The t-statistic provides some idea of how well a predictor predicts the outcome variable.
c
The t-statistic can be used to see whether a predictor variable makes a statistically significant contribution to the regression model.
d
The t-statistic is equal to the regression coefficient divided by its standard deviation.
a
the strength of a relationship
b
whether a relationship exists
c
the direction of a relationship
d
the best-fitting straight line in a linear relationship
Explanation / Answer
Ans:
1)The linear regression line indicates the best-fitting straight line in a linear relationship.
Option d is correct.
2)
Option b is not true.
The t-statistic provides some idea of how well a predictor predicts the outcome variable.
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