a. Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of p.(to 2 decimals)E(p):op=(to 4 decimals)b. Based upon a sample of 200 complaints, what is the probability that the sample proportion will be within 0.06 of the population proportion (to4 decimals)?.82= .0272E(p)probability0.2869c. Suppose you select a sample of 460 complaints involving new car dealers. Show the sampling distribution of p..82 (to 2 decimals)op(to 4 decimals)d. Based upon the larger sample of 460 complaints, what is the probability that the sample proportion will be within 0.06 of the populationproportion (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 0.06 of the population mean is increased byin precision by increasingthe sample size.(to 3 decimals). There is a gain In 2016 the Better Business Bureau settled 82% of complaints they received in the United States. Suppose you have been hired by the BetterBusiness Bureau to investigate the complaints they received this year involving new car dealers. You plan to select a sample of new car dealercomplaints to estimate the proportion of complaints the Better Business Bureau is able to settle. Assume the population proportion of complaintssettled for new car dealers is 0.82, 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).0272(to 4 decimals)b. Based upon a sample of 200 complaints, what is the probability that the sample proportion will be within 0.06 of the population proportion (to4 decimals)?.82probability = 0.2869c. Suppose you select a sample of 460 complaints involving new car dealers. Show the sampling distribution of p.(to 2 decimals)E(p)=.82op(to 4 decimals)d. Based upon the larger sample of 460 complaints, what is the probability that the sample proportion will be within 0.06 of the populationproportion (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 0.06 of the population mean is increased by(to 3 decimals). There is a gain

As per the given information, the population proportion of complaints settled for new car is,…

Answered: In 2016 the Better Business Bureau…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Suppose that 9% of all athletes in a sport use a banned drug. A test is available that detects 94% of athletes who use the drug. But the test also gives a positive result for 8% of those who do not use the drug. What percent of athletes who test positive for the drug are actually using the drug? Answer: 77.28 %
A drug company claims that an allergy medication causes headaches in 5% of those who take it. A medical researcher believes that more than 5% of those who take the drug actually get headaches. Identify the population(s). 5% of those who take the drug actually get headaches. the proportion of those who take the drug who get a headache. all individuals who take the medication. more than 5% of those who take the drug actually get headaches. What is the variable being examined for individuals in the population(s)? more than 5% of those who take the drug actually get headaches. the proportion of those who take the drug who get a headache. whether or not a person who takes the drug gets a headache. 5% of those who take the drug actually get headaches.
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In 2016 the Better Business Bureau settled 84% of complaints they received in the United States. Suppose you have been hired by the Better Business Bureau to investigate the complaints they received 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 settle. Assume the population proportion of complaints settled for new car dealers is 0.84, 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) (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 460 complaints involving new car dealers. Show the sampling distribution of p. E(F) (to 2…
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The price per share of stock for a sample of companies was recorded at the beginning of the first financial quarter and then again at the end of the first financial quarter. How stocks perform during the first quarter is an indicator of what is ahead for the stock market and the economy. Use the sample data in the file StockQuarter to answer the following. Click on the datafile logo to reference the data. Beginning of 1st end of 1stCompany Quarter QuarterBank of New York Mellon 53.82 54.19 Kraft Foods 77.02 55.70 E.I. du Pont de Nemours and Company 109.00 102.57 Consolidated Edison 83.58 79.95 Johnson & Johnson 139.23 126.01 Union Pacific…

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