Calculating a confidence interval for the proportion requires a minimum

Calculating a confidence interval for the proportion requires a minimum sample size. Calculate a confidence interval, using any confidence level of 90% or higher, for the population proportion for each of the following.,a. n = 200 and p? = .01,b. n = 160 and p? = .9875,Explain why these confidence intervals reveal a problem when the conditions for using the normal approximation do not hold.