You may need to use the appropriate appendix table or technology to answer this question. In 2016 the Better Business Bureau settled B0% of complaints they received in the United States. Suppose you...

Please all solve the question

Extracted text: You may need to use the appropriate appendix table or technology to answer this question. In 2016 the Better Business Bureau settled B0% of complaints they received in the United States. Suppose you have been hired by the Better Business Bureau to investigate the complaints they recelved this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the Better Business Bureau is able to settie. Assume the population proportion of complaints settied for new car dealers is 0.80, the same as the overall proportion of complaints settled in 2016. (a) Suppose you select a sample of L80 complaints involving new car dealers. Show the sampling distributon of p -0.06 -0.03 0.06 -1.2 -0.2 08 1.8 28 0.74 0.77 ON -0.03 0.03 0.06 0.09 (b) Based upon a sample of 180 complaints, what is the probabiaity that the sample proportion will be within 0.04 of the population proportion? (Round your answer to four decimal places.) 02113 () Suppose you select a sample of 430 complaints involving new car dealers. Show the sampling distribution of . -12 -02 18 28 -0.04 -0.02 0.02 0.04 -0.02 0.02 0.04 006 0.76 0.78 (4) Based upon the larger sample of 430 complaints, what is the probablity that the sample proportion wil be within 0.04 of the population proportion? (Round your answer to four decimal places.) (e) As measured by the increase in probability, how much do you gain in precision by taking the arger sample in part (e)7