Which of the following statements is true of confidence intervals?
A)Confidence intervals in a CLM are also referred to as point estimates.
B)Confidence intervals in a CLM provide a range of likely values for the population parameter.
C)Confidence intervals in a CLM do not depend on the degrees of freedom of a distribution.
D)Confidence intervals in a CLM can be truly estimated when heteroskedasticity is present.

Question

Quizplus · Accepted Answer

Confidence intervals in a CLM provide a range of likely values for the population parameter, which takes into consideration the variability of the sample statistics. They provide a measure of uncertainty around the point estimate, which is not possible to obtain from a single sample statistic. Confidence intervals do not necessarily depend on the degrees of freedom, as they depend on the sample size and the standard error. Heteroskedasticity may affect the precision of the estimation of the confidence intervals, but it does not prevent their calculation.

Which of the Following Statements Is True of Confidence Intervals