The election gutern 8howed that a certain candidatereceived 48,of the votes. Determine the probabilitythat a poli g a) 200 and bS to00 people sebicked atrandamfrom the voting Populalation toould haveshowon amaJonity f votes in favoue of the eandidat.

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Answered: The election n 8howed that a certain…

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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The table below shows the results of a survey that asked 1069 adults from a certain country if they favored or opposed a tax to fund education. A person is selected at random. Complete parts (a) through (c). Unsure Total 4 Support 157 Oppose 330 Males 12 499 Females 240 302 28 570 Total 397 632 40 1069 P(supports the tax or is male) = 0.691 (Round to the nearest thousandth as needed.) (c) Find the probability that the person is not unsure or is female. P(is not unsure or is female) = (Round to the nearest thousandth as needed.)
Two jurors are selected from 4 alternates to serve at a murder trial. Using the notation A1,A3, for example, to denote the simple event that alternates 1 and 3 are selected, list the elements of the sample space S.
Kiyo is creating a table using mosaic tiles chosen and placed randomly. She is picking tiles without looking. How does P(yellow second | blue first) compare to P(yellow second | yellow first) if the tiles are selected without replacement? If the tiles are selected and returned to the pile because Kiyo wants a different color?
A mayor running for re-election claims that during his term, average municipal taxes have fallen by $100. A conscientious statistician wants to test this claim. He surveys 38 of his neighbors and finds that their taxes decreased (in dollars) as follows:113, 85, 109, 97, 117, 87, 105, 116, 84, 122, 118, 107, 108, 115, 100, 100, 107, 111, 101, 108, 71, 107, 80, 103, 86, 121, 117, 83, 113, 107, 124, 102, 78, 112, 96, 97, 88, 117The statistician assumes a population standard deviation of $14. Do you think the statistician should reject the mayor's claim? Why or why not?Step 1: State the hypothesis. = Step 2: Determine the Features of the Distribution of Point Estimates Using the Central Limit Theorem.By the Central Limit Theorem, we know that the point estimates are ___ with distribution mean ____ and distribution standard deviation ______.Step 3: Assuming the Claim is True, Find the Probability of Obtaining the Point Estimate.P(___ ___ ___ ) = P(___ ___ _____ )= _____
In a sample of 20 college students' tultion bills, the aveAige cost was$6250 with as a. Find the 06$525 95% contidenc nterval for the true standurd deviction standard deviabion n 06 Semester Cost b.A can hes bren male that the avercoe semBler tuition cpst is $5,500 Test whe ther the actual cast of tuition 35, 500, with a 1% level of Signiticunce using the ritical value method f collegc tution s normally distrbubed assumiro the distribution Of
A polling organization has been hired to conduct a survey to determine the proportion of people who are likely to support an upcoming ballot initiative. To help determine the size of the sample required for the main poll, a preliminary poll of 20 people is taken that yields the results below. (Yes indicates that the person will support the initiative, No indicates that they won't.) YesYesNoNoNoYesYesYesYesYesYesNoNoYesYesNoYesYesNoNoYesNoYesNoYesYesYesYesYesYesNoYesYesYesNoNoYesNoNoNo Based on the results of the peliminary poll, how large a sample is required for the main poll, assuming that the main poll should have a margin of error of 3% and a confidence level of 97.8%. Sample Size =
An airport in a country that has an elevated occurance of terrorism profiles airline passengers and semi-randomly selects who will undergo additional screening. If one person is stoped, everyone they are traveling with is also stopped. Over the course of several months, the airport security stops 15% of passengers for this extra screening. On a certain day. 519) passengers go through security at this airport. Let the variable be the number of those people who are chosen for additional screening. Is the number of passengers who are chosen for additional screening a binomial random variable? Select all that apply. Yes. All four conditions are met. No. There is not a fixed number of trials. No. The trials cannot reasonably be assumed to be independent. No. The outcomes cannot be described as only "success" and "failure." No. The probability of success is not the same for each trial.
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Update A certain company offers in-home cral HIV testing. According to their website, out of 4,998 persons who were unaware of their HIV status, 96 persons were HIV positive and 4,902 were HIV negative (as determine by an indeperdent lab test). For 4,901 out of the 4902 persons who were HIV negative, he company's test correctly predicted such a negative result, but incorrectly predicted a positive result for the one remaining person. Of the 96 persons were HIV positive, the company's test correctly predicted a positive result for 90 of them and a negative result for the others. These results can be summarized in the table below Pos Neg Total HIV 90 6 96 No HIV 4,901 4,902 Total 91 4,907 4,998 Find the estimated sensitivity of the company's test for the population that the sample of 4,998 represents. (Round to four decimal places as needed.)
We poll 250 people and find that 50% favor Candidate S. In order to estimate with 99% confidence what percent of ALL voters would vote for Candidate S, which calculator command should we use? O 2-SampTInt O ZInterval O TInterval O 2-PropZInt O1-PropZint 02-SampZInt
An opinion poll contacts 1021 adults and asks them, which political party do you think has better ideas for leading the country in the twenty first century? In all, 723 of the 1021 day, the democrats. The sample in the setting is? (a) all 220 million adults in the U.S. (b) the 1022 people interviewed (c) the 723 people who chose the democrats.

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The election n 8howed that a certain candidate received 48%. of the votes. Determine the pmobability that a poli of a) e00 and b 1o00 people selecked at random from the voting populalation coould have Shocon amaJonity of votes in favou of thee eandidat.