Inis Question. I pl Find the confidence interval for estimating the population proportion for parts (a) through (c). a. 90% confidence level; n = 750; p =0.10 b. 99% confidence level; n = 280; p = 0.02 C. a = 0.03; n = 455; p =0.60 Click the icon to view the standard normal table of the cumulative distribution function. a. The confidence interval is