Answer
a)236 b)0.402 < p < 0.516 c)0.431 < p < 0.487 d)99% confidence interval.
Work Step by Step
a) $x=514\cdot 0.459=235.926\approx236.$ b)0.402 < p < 0.516 c)0.431 < p < 0.487 d) The 99% confidence interval is wider because it has a bigger confidence interval and hence is less precise.
