For any one of the intervals you constructed in either Project A or Project B, identify each of the following concepts and terms, and briefly explain their role in estimation: sample, population, statistic, parameter, EPSEM, representative, confidence level.

Part A: Estimating Means Variable: Educ - Highest Year of School Completed Descriptive Statistics N Minimum Maximum Mean Std. Deviation Highest year of school 1461 0 20 13.80 2.940 completed Valid N (listwise) 1461 Formula 7.2: c.i. = X _ z VN- 2.94 c. i. = 13.80 + 1.96 /1461 2.94 c. i. = 13.80 + 1.96 V1460 c. i. = 13.80 + 1.96(0.0769433166) c. i. = 13.80 _ 0.15 c. i. = 13.80 + 0.15 = 13.95 c. i. = 13.80 - 0.15 = 13.65