1. What is the probability that a statistician who constructs 20 independent 95% confidence intervals will err:
(a) Once (as in our example in Section 7-I)?
(b) Not at 411?
(c) More than once?
2. True or false? If false, correct it.
(a) The sample proportion P is an unbiased estimator of the population proportion
(b) p is a random variable (varying from sample to sample), and is used to estimate the parameter I.