| The mean and standard deviation of a random sample of n measurements are equal to 34.4 and 3.5, respectively. a. Find a 99% confidence interval for p if n =49, b. Find a 99% confidence interval for p if n = 196. . Find the widths of the confidence intervals found in parts a and b. What is the effect on the width of a confidence interval of quadrupling the sample size while holding the confidence coefficient fixed? : -