Question

In: Statistics and Probability

In a one predictor regression, the standardized regression coefficient is equal to Group of answer choices...

In a one predictor regression, the standardized regression coefficient is equal to

Group of answer choices

A. The least squared error principle

B. The correlation coefficient

C. The intercept

D. The number of times Kanye West interrupts acceptance speeches

2)

A social psychologist did a study examining whether length of court trials (X) in days predicts length of time for juries to come to a decision (Y) in hours. The resulting regression equation is: Ŷ= 4 + (0.33)(X). What is the interpretation of the regression coefficient?

Group of answer choices

A. For every 1 day increase in court trial, juries are predicted to take an additional 4 hours.

B. For every 1 day increase in court trial, juries are predicted to take an additional .33 hours

C. For every .33 day increase in court trial, juries are predicted to take an additional 4 hours.

D. For every 4 day increase in court trial, juries are predicted to take an addition .33 hours of deliberation.

3)

To determine the regression equation predicting Y from X, we use what principle

Group of answer choices

A. The effect size principle

B. The linear principle

C. The least squared error principle

D. Skinner, the Principal from the Simpsons

4)

The interpretation of the standardized regression coefficient, β, is:

Group of answer choices

A. For a one unit increase in X, Y is predicted to increase by β units

B. For a one unit increase in X, Y is predicted to increase by β standard deviations

C. For a one standard deviation increase in X, Y is predicted to increase by β standard deviations

D. You cannot interpret standardized regression coefficients.

please do all

Solutions

Expert Solution

1)In a one predictor regression, the standardized regression coefficient is equal to

(B)The correlation coefficient

2)A social psychologist did a study examining whether length of court trials (X) in days predicts length of time for juries to come to a decision (Y) in hours. The resulting regression equation is: Ŷ= 4 + (0.33)(X). What is the interpretation of the regression coefficient?

(B) For every 1 day increase in court trial, juries are predicted to take an additional .33 hours

3)To determine the regression equation predicting Y from X, we use what principle

(C). The least squared error principle

4)The interpretation of the standardized regression coefficient, β, is:

(A.) For a one unit increase in X, Y is predicted to increase by β units

orchestra answered 2 years ago
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