1. A random sample of five observations is selected. The deviation scores for the first four observations are -5, 3, 1, and -2.
(a) What is the fifth deviation score?
(b) Compute SS and sX for the sample of all five observations.
2. You select a random sample of 10 observations and compute s, the estimate of σ. Even though there are 10 observations, s is really based on only nine independent pieces of information. (Explain.)