In 2016 the Better Business Bureau settled 77% of complaints they received in the United States.Suppose you have been hired by the Better Business Bureau to investigate the complaints they receivedthis year involving new car dealers. You plan to select a sample of new car dealer complaints to estimatethe proportion of complaints the Better Business Bureau is able to settle. Assume the populationproportion of complaints settled for new car dealers is 0.77, the same as the overall proportion ofcomplaints settled in 2016. Use the z-table.a. Suppose you select a sample of 200 complaints involving new car dealers. Show the samplingdistributionof p.E(p) =T = 0.0298(to 4 decimals)b. Based upon a sample of 200 complaints, what is the probability that the sample proportion will bewithin 0.05 of the population proportion (to 4 decimals)?0.77(to 2 decimals)probability = 0.8932c. Suppose you select a sample of 450 complaints involving new car dealers. Show the samplingdistribution of p.E(p)size.(to 2 decimals)(to 4 decimals)d. Based upon the larger sample of 450 complaints, what is the probability that the sample proportion wilbe within 0.05 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 largersample in part (d)?The probability of the sample proportion being within 0.05 of the population mean is increased by(to 3 decimals). There is a gain in precision by increasingthe sample

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Answered: In 2016 the Better Business Bureau…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A marketing company is interested in the proportion of people that will buy a particular product. Match the vocabulary word with its corresponding example
2.What percentage of data is represented by the shaded area? Enter your answer as a number, like this: 42%
CURSED MOVIE Released in 1956, the movie The Conqueror attracted considerable attention because many members of the cast and crew died from cancer supposedly resulting from exposure to radioactive fallout. The movie was shot a short distance from a site in Nevada where above-ground tests of atomic weapons were conducted. Among the 220 cast and crew members, 91 developed cancer. According to the National Cancer Institute, for that time period and for the age cohort, the incidence of cancer was about 40%. Use a 0.05 significance level to test the claim that the sample of cast and crew members is from a population in which the rate of cancer is greater than 40%. What do you conclude about the movie being a curse? Find null hypothesis and alternative hypothesis. Find test statsistic. Find P-value. How do you find p hat
A research company surveyed 1024 people who routinely fly for business travel purposes and found that 384 of them were generally satisfied with the flights they took. Find the standard error for the sample proportion of people who routinely fly for business travel purposes and are generally satisfied with the flights they take. Enter your answer as a decimal rounded to three decimal places.
No written by hand solution The Coca-Cola Company reported that the mean per capita annual sales of its beverages in the United States were 459 eight-ounce servings (Coca-Cola Company website, February 25, 2017). Suppose you are curious whether the consumption of CocaCola beverages is higher in Atlanta, Georgia, the location of Coca-Cola’s corporate headquarters. A sample of 61 individuals from the Atlanta area showed a sample mean annual consumption of 479.5 eight-ounce servings with a standard deviation of s = 90 ounces. Using α = .01, does the sample support the conclusion that means annual consumption of Coca-Cola beverage products is higher in Atlanta? Use both the critical value and p-value approach to test the hypothesis that H0: µ >459 in Atlanta vs. the 1-sided alternative. 7. From data from the past 10 years, we know that South Mall Theater averaged 600 patrons per day, with variance equal to 1000. This year, based on data from 25 random days, we found that the…
Approximately 21% of music lovers like Country Music. Of those who do, 97% do not have mild brain damage.What percent of music lovers like Country and have Brain Damage?
The Chicago Cubs win an average of 56.8% of all their games. How should this data be classified? A. None of these Options B. Quantitative C. Qualitative D. Categorical
You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 160 men, and 15% own cats.You sample 60 women, and 20% own cats.Find the test statistic
Approximately 29% of music lovers like Country Music. Of those who do, 96% do not have mild brain damage. What percent of music lovers like Country and do not have Brain Damage?
Answer c and d only. Please explain the results.
I can't understand why the data is the percentage of surveyed parents.

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