Random samples of size n = 90 were selected from a binomial population with p = 0.4. Use the normal distribution to approximate the following probabilities. (Round your answers to four decimal places.)

Question

(a)
P(p̂ ≤ 0.49) =

(b)
P(0.37 ≤ p̂ ≤ 0.49) =

Thanks.

Answer 1

423