The accompanying table shows the result of a national election along with the vote predicted by several organizations in the days before the election. The sample sizes were typically a bit above 1,000 people, and the reported margin of error was around plus or minus 4percentage points. The percentages for each poll may not sum to 100 because of voters who indicated they were undecided. Complete parts a through c.Click the icon to view the vote predictions and result.a. The News Network 1 poll predicted that 49% were going to vote for Candidate A, with a margin of error of plus or minus 4%. Explain what this means. Select the correct choice below and fill in the answer boxes to complete your choice.(Type integers or decimals. Do not round.)O A. The true proportion of voters for Candidate A is withinpercentage points of%.O B. The actual proportion of voters for Candidate A is likely to be more than percentage points away fromO C. All samples have a sample proportion that is withinpercentage points of%.Vote Predictions and ResultPollPolling Company 1News Network 1Polling Company 2News Network 2Actual votePredicted VotePrintCandidate A Candidate B4748494956424850.7Done4847.6- X%.

The provided information is as follows:The proportion that News Network 1 poll predicted they were…

Answered: a. The News Network 1 poll predicted…

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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At the local college, a study found that students earned an average of 13.2 credit hours per semester. A sample of 80 students was taken. What is the best point estimate for the average number of credit hours per semester for all students at the local college? Answer How to enter your answer (opens in new window) Tables Keyp Keyboard Shor
The accompanying table lists 18 of the largest companies in the world ranked by their market capitalization (in billions of dollars). A company's market capitalization is defined as the number of its shares multiples by the price per share. Complete parts a throuah d below. a. Determine the coefficient of variation. Data Table coefficient of variation = (Round to two decimal places as needed.) b. Calculate the z-score for a company with a market capitalization of $250 billion. Company Market Cap ($ billions) Z-score = (Round to two decimal places as needed.) Wells Fargo 274.4 Nestle 229.5 c. Test to determine if the empirical rule holds true by determining the percentage of observations that fall within tone standard deviation from the mean. ExxonMobil 343.2 What is the percentage of observations that fall within tone standard deviation from the mean? ATandT 249.3 JPMorgan Chase Alphabet 306.6 % of the observations fall within t one standard deviation from the mean. 579.5 (Round to the…
The lifetimes of Brand A tires are distributed with mean 43,000 miles and standard deviation 4600 miles, while Brand B tires last for only 36,000 miles on the average (mean) with standard deviation 2100 miles. Nicole's Brand A tires lasted 35,000 miles and Yvette's Brand B tires lasted 33,000 miles. Relatively speaking, within their own brands, which driver got the better wear? Relatively speaking, the driver using the V tires got the better wear.
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A. Determine the coefficient of determination, r2, and interpret its meaning. (Fill in the Blank) r2 = ___? (Round to four decimal places as needed.) B. What is the meaning of the coefficient ofdetermination? (Choose Below) A. It measures the variability in the actual plate gap from the predicted plate gap. B. It measures the variability in the actual tear rating from the predicted tear rating. C. It is the proportion of the variation in the plate gap that is explained by the variability in the tear rating. D. It is the proportion of the variation in the tear rating that is explained by the variability in the plate gap. C. Determine the standard error of the estimate. SYX = ___? (Round to four decimal places asneeded.)
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There are 9 girls and 12 boys in the classroom. What percentage of the classroom are girls? A. 75%B. 133%C. 42.8%
The dotplot shows the distribution of passing rates for the bar exam at 185 law schools in the United States in a certain year. The five number summary is 27, 77, 87, 91, 99. Draw the boxplot and explain how you determined where the whiskers go. Click the icon to view.a dotplot of bar exam passing rates. Draw the boxplot. Select the correct answer below. OA. 0 100 Bar-Pass Rate (%) OB. Q G 100 Bar-Pass Rate (%) 0 Bar-Pass Rate (%) 100 O D. Q Q Q G 0 100 Bar-Pass Rate (%) Explain how you determined where the whiskers go. Select the correct answer below and fill in the answer boxes to complete your choice. (Type integers or decimals. Do not round.) OA. The whiskers extend to the minimum, and the maximum, OB. The whiskers identify the range of values that Q1 and Q3 will likely be found in for a given number of trials. The whiskers extend to the smallest expected value of Q1, expected value of Q3, OC. The whiskers extend to the most extreme values that are not potential outliers. The left…
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