The proportion of Americans who are satisfied with the way things are going in there lives is 0.76. Suppose that a random sample of 110 Americans is obtained.
Distribution of p is approximately normal with u = 76 and o = 0.041.
(a) The probability that 80 Americans in the sample are satisfied with their lives is ? Round to 4 decimal.
(b) The probability that 77 or fewer Americans in the sample are satisfied with their lives is ? Round to 4 decimal.