Indiana has a population of about 7 million people and Ohio about 12 million. Is itpossible for there to be a poll where over 50% of Hoosiers say "yes", over 50% ofOhioans say "yes", but over 50% of all residents of both states say "no"? If no, explainwhy not. If yes, give an example of how that could happen.

Answered: Indiana has a population of about 7…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A local blood center needs donors and has advertised on the college campus. Faculty, staff, and students all donated during the drive. Many also volunteered to help set up, hand out materials, and clean up at the end of the event. There were a total of 500 people surveyed about their involvement that day. Two hundred twenty-one of them gave blood. One hundred fifty-six helped with setting up and cleaning up, as well as handing out materials. If eighty-five people both helped and donated, find out how many people neither donated nor helped. There were respondents who neither donated nor helped. (Type a whole number.)
A golf progolf pro wanted to compare two types of golf clubsgolf clubs. One type is graphite dash shaftedgraphite-shafted and the other is steel dash shaftedsteel-shafted. It is a common belief that graphite shafts give more distancegraphite shafts give more distance. This belief is tested by having 10 golfers hit one ball with each type of club and thenhaving 10 golfers hit one ball with each type of club and then determining the distance that the ball traveled.determining the distance that the ball traveled. A coin flip was used to determine which type of club each player would hit with firstclub each player would hit with first. Results indicated that there was no difference in the two types of clubclub. Complete parts (a) through (f) below.(a) What type of experimental design is this? Randomized block design Completely randomized design Matched-pairs design Case-control study (b) What is the response variable in this study? The golfersgolfers The distancedistance The types…
In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests." The article says that the overall statewide proportion of school buses that fail safety tests is 9%. However, one bus company has a higher rate of over 12%. Assume that we want a new estimate for the statewide proportion of school buses that fail the safety inspection. We take a sample of 200 buses and find that 20 buses fail the safety inspection. If we construct a 95% confidence interval estimate for the true proportion of all Minnesota school buses that fail the safety tests, what is the upper limit of the interval? (Enter you answer including 3 decimal positions, e.g. .234)
You may need to use the appropriate technology to answer this question. During the first 13 weeks of the television season, the Saturday evening 8:00 p.m. to 9:00 p.m. audience proportions were recorded as ABC 31%, CBS 26%, NBC 27%, and independents 16%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 93 homes, CBS 72 homes, NBC 87 homes, and independents 48 homes. Test with a = 0.05 to determine whether the viewing audience proportions changed. State the null and alternative hypotheses. Ho: PABC = 0.31, P CBS = 0.26, PNBC = 0.27, PIND = 0.16 H: The proportions are not PABC = 0.31, PCBS = 0.26, PNBC = 0.27, PIND - 0.16. %3D Ho: PABC H: PABC 0.31, PCBS 0.26, PNBC = 0.27, PIND = 0.16 %3D %3D + 0.31, PCBS * 0.26, PNBC * 0.27, PIND * 0.16 Ho: The proportions are not PARC 0.31, PCBS = 0.26, PNBC = 0.27, PIND = 0.16. = 0.27, PIND = 0.16 Ha: PABC = 0.31, P CBS = 0.26, PNBC %3D = 0.31, PCBs * 0.26, PNBC H: PABC = 0.31,…
If 61% of Americans believe most school textbooks favor political correctness over accuracy, how many Americans in a group of 50 would you expect to believe this?
Can an interviewer influence how people respond to the survey question, "Do you like dogs?" To answer this question, Jason carried out an experiment. As each person approached, Jason flipped a coin. If it landed on heads, Jason picked up his puppy and asked the person if they like dogs. If the coin landed on tails, Jason picked up a clipboard and asked the person if they like dogs. Of the 50 people that Jason surveyed while holding his puppy, 35 said "Yes," while 11 of the 44 people that Jason surveyed while holding his clipboard said "Yes." Let p₁ = the true proportion of people like the ones in this study who would say they like dogs when Jason is holding his puppy and p2 = the true proportion of people like the ones in this study who would say they like dogs when Jason is holding a clipboard. Construct and interpret a 90% confidence interval for the difference in the proportion of people like these who would say they like dogs when Jason is holding his puppy or a clipboard. O…
In the Aloha state, you are very unlikely to be murdered! However, it is considerably more likely that your house might be burgled, your car might be stolen, or you might be punched in the nose. That said, Hawaii is still a great place for a vacation or, if you are very lucky, to live. The following numbers represent the crime rates per 100,000 population in Hawaii: murder, 3.6; rape, 29.4; robbery, 79.3; house burglary, 867.6; motor vehicle theft, 531.7; assault, 118.3. Could the information as reported be displayed as a circle graph? Explain. Hint: Other forms of crime, such as arson, are not included in the information. In addition, some crimes might occur together.
2. Are attitudes toward shopping changing? Sample surveys show that fewer people enjoy shopping in stores than in the past. A recent survey asked a random sample of 2500 U.S. adults if they agreed or disagreed with the statement, "I prefer to shop for clothes online rather than in a store." In this survey, 1575 agreed. A manager of a local clothing store claims that 60% of all U.S. adults would say "Agree" if asked the same question. (a) What is the sample proportion of U.S. adults who agreed with the statement? (b) If the manager's claim is true, what is the probability that the proportion in a random sample of 2500 U.S. adults is at least as far above 0.60 as the results of this survey? (c) Based on your answer in part (b), do you have reason to doubt the manager's claim?
You are doing a research project in political science to determine the proportion of voters in your district who favor capital punishment. a. If no preliminary sample of voters is taken to estimate p, how large a sample is necessary to be 99% sure that the point estimate will be within a distance of .01 from p? b. The NORC found that approximately 67% of people in the U.S. favor capital punishment. How large a sample is necessary to be 99% sure that the point estimate will be within a distance of .01 from p?
Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5
By a small margin, Facebook remains the top choice of social media over all ages, with 29% using Facebook most often among those using social media sites. However, more visually oriented social networks such as Snapchat and Instagram continue to draw in younger audiences. When asked "Which one social networking brand do you use most often?" the results in the table show the top brands chosen by Americans aged 12-34 who currently use any social networking site or service. Social M edia Site Faceboo k Snapchat Instagra m Twitter Percentage That Use Most Often 29 28 26 6 20 (a) What is the sum of the percentages for these top social media sites? Give your answer as an exact number. Macmillan Learning top social media sites: What percent of Americans aged 12-34 use other social media sites most often? Give your answer as an exact number. other social media sites: do %
Could you please answer number 3 and number 4?

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