When using regression analysis, confidence intervals may be used to:
A) determine the x and y variables
B) allow the researcher to use the knowledge of the normal curve to specify the range in which the dependent variable may fall
C) allow the researcher to use the knowledge of the normal curve to specify the range in which the independent variable may fall
D) determine the slope
E) satisfy assumptions

Question

Quizplus · Accepted Answer

Confidence intervals are used to determine the range in which the dependent variable may fall. The normal curve is used to specify this range, which can help the researcher determine the reliability and significance of the regression results. Confidence intervals are not used to determine the x and y variables, the range of the independent variable, or the slope, nor do they satisfy assumptions on their own.

When Using Regression Analysis, Confidence Intervals May Be Used To