The average verbal SAT score for the entire class of enterin…

The average verbal SAT score for the entire class of entering freshmen is 530.  However, if you select a sample of 20 freshmen and compute their average verbal SAT score you probably will not get exactly 530.  What statistical concept is used to explain the natural difference that exists between a sample mean and the corresponding population mean?

The following data were obtained from a repeated-measures re…

The following data were obtained from a repeated-measures research study. What is the value of MD for these data?Subject            1st       2nd   #1                  7          16   #2                  6          13   #3                10            8   #4                  9          18   #5                  7          14

The following data were obtained from a repeated-measures re…

The following data were obtained from a repeated-measures research study. What is the value of MD for these data?Subject            1st       2nd   #1                  7          16   #2                  6          13   #3                10            8   #4                  9          18   #5                  7          14