1. The following sample of n = 4 scores was obtained from a population with unknown parameters. Scores: 2, 2, 6, 2

a. Compute the sample mean and standard deviation. (Note that these are descriptive

values that summarize the sample data.)

b. Compute the estimated standard error for M. (Note that this is an inferential value

that describes how accurately the sample mean represents the unknown

population mean.)

2. Find the estimated standard error for the sample mean for each of the following samples.

a. n = 16 with SS = 540

b. n = 25 with SS = 600