the same as the overall proportion of complaints settled in 2016. Use the z-table. a. Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of p. E(p)= (to 2 decimals) p= (to 4 decimals) b. Based upon a sample of 200 complaints, what is the probability that the sample proportion will be within 0.04 of the population proportion (to 4 decimals)? probability= c. Suppose you select a sample of 450 complaints involving new car dealers. Show the sampling distribution of p. E(p)=p= d. Based upon the larger sample of 450 complaints, what is the probability that the sample proportion will be within 0.04 of the population proportion (to 4 decimals)? probability = e. As measured by the increase in probability, how much do you gain in precision by taking the larger sample in part (d)? The probability of the sample proportion being within 0.04 of the population mean is increased by (to 3 decimals). There is a gain in precision by the sample size