Refer to the previous exercise.
a. In part b, if the sampling distribution of the sample proportion had mean 0.409 and the standard deviation 0.008, give an interval of values within which the sample proportion will almost certainly fall.
b. The sample proportion for Whitman from the exit poll was p̂ = 0.424. Using part a, was this one of the plausible values expected in an exit poll? Why?