8 LARGE-SAMPLE ESTIMATION

Problem J: A random sample of n = 300 observations was taken to estimate the binomial proportion p of a binomial population. Suppose the sample produced x = 270 successes.

(36) Refer to Problem J. The sample proportion p? is an unbiased point estimator for the population proportion p.

(1) True (2) False

(37) Refer to Problem J. Find the (approximate) 95% margin of error.

(1) 0.013 (3) 0.034 (2) 0.028 (4) 0.045

8 LARGE-SAMPLE ESTIMATION Problem J: A random sample of n = 300 observations was taken to estimate the binomial proportion p of a binomial population. Suppose the sample produced a: = 270 successes. _____ (36) Refer to Problem J. The sample proportion 35 is an unbiased point estimator for the population proportion p. (1) True (2) False _____ (37) Refer to Problem J. Find the (approximate) 95% margin of error. (1) 1013 (3) $0.034 (2) i0.028 (4) $0.045