Use the sample data and confidence level given below to complete parts (a) through (d). In a study of cell phone use and brain hemispheric dominance, an internet survey was e-mailed to 2392 subjects randomly selected from an online group invoked with ears. 987 surveys were returned. Construct a 99% confidence interval for the proportion of returned surveys. A. Find the best point estimate of the population proportion p. __ (round to three decimal places as needed.) B. Identify the value of the margin of error E. __ (round to three decimal places as needed.) C. Construct the confidence interval. __ < p < __ ( round three decimal places as needed.) D. Write a statement that correctly interprets the confidence interval. Choose the correct answer below. A. One has 99% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion. B. One has 99% confidence that the sample proportion is equal to the population proportion. C. There is a 99% chance that the true value of the population proportion will fall between the lower bound and the upper bound. D. 99% of sample proportions will fall between the lower bound and the upper bound