Which of the following best describes the symbol $\bar { x } _ { D }$ ?
A) The difference in the means of two dependent populations.
B) The difference in the means of two independent populations.
C) The mean of the differences in the pairs of observations taken from two dependent samples.
D) The matched pairs differences.

Question

Quizplus · Accepted Answer

The symbol $\bar { x } _ { D }$ represents the mean of the differences between the pairs of observations taken from two dependent samples. This is also known as the matched pairs differences or paired differences. It is used in inferential statistics to test whether there is a significant difference between the means of two dependent populations.

Which of the Following Best Describes the Symbol xˉD\bar { x } _ { D }xˉD​

Which of the Following Best Describes the Symbol $\bar { x } _ { D }$