(2 points) Determine the critical value z2a that corresponds to a 92% level of confidence. Draw the normal curve that shows what you are trying to find. Consider a confidence interval with a lower bound of 0.051 and an upper bound of 0.074 with sample size n=1120. a. (1 point) Determine the point estimate of the population proportion, p^. b. (1 point) Determine the margin of error, E. c. (2 points) Determine the number of individuals in the sample with the specified characteristic, x.