Reference no: EM131436195
A hypothesis test concerning two population proportions is described in each of the following problems. Identify each population, and determine the appropriate null and alternative hypotheses in terms of p1 and p2.
a. A study was conducted to determine whether there is any difference in the proportion of people who listen to satellite radio in California versus Tennessee.
b. Two random samples, of men and of women who tried to talk their way out of a traffic ticket, were obtained. The number of each who said they missed a street sign was recorded. The data will be used to determine whether the proportion of women who say they missed a street sign is greater than the proportion of men who say so.
c. Random samples of teens ages 13-19 from two different school districts were obtained. The number of teens who own a cell phone was recorded. The data will be used to determine whether there is any difference in the proportion of teens who own a cell phone in the two districts.
d. Random samples of Americans who received an income tax refund were obtained. All were classified by income level (low versus high) and asked whether they intended to use their refund to pay outstanding bills. The data will be used to determine whether the proportion of highincome Americans who pay bills with tax refunds is 0.10 greater than the proportion of low-income Americans who pay bills with tax refunds.
e. Independent random samples of videos on U.S. and Canadian newspaper websites were obtained. The number of videos that were advertisements was recorded. The data will be used to determine whether the proportion of videos that are advertisements in the United States is higher than in Canada.
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Watch the video titled - nanotechnology today
: Identify one (1) challenge (e.g., safety issue, ethical issue, etc.) that is related to the product in question and describe one (1) change that you think law makers should make to the current regulations over nanotechnology.
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Produce a magnetic field
: It is desired that a solenoid 39cm long and with 410 turns produce a magnetic field within it equal to the Earth's magnetic field (5.0 x 10^-5 T). What current is required? Express in 2 significant figures.
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The function of the organizational culture
: You will be required to visit a local organization in your area (Target, Starbucks, Wal-Mart, etc....) and you should not be a past or present employee of the organization. The purpose of your visit is strictly to observe an organization as it goes a..
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Do you believe societys expectations for csr will change
: Corporate social responsibility (CSR) is an "idea that business has [as] a duty to serve in general as well as the financial interest of stockholders". Do you believe society's expectations for CSR will change in the next decade?
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Determine the appropriate null and alternative hypotheses
: A hypothesis test concerning two population proportions is described in each of the following problems. Identify each population, and determine the appropriate null and alternative hypotheses in terms of p1 and p2.
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Ranked positional weight procedure for cycle time
: Determine the minimum number of stations for the above assembly line balancing problem by using the “Ranked Positional Weight” procedure for a Cycle Time of 12 minutes.
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Explain and describe the visual image in your own words
: Explain and describe the visual image in your own words. Does the visual image make an argument? Would the visual image persuade a reasonable person or does the image employ fallacious reasoning?
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Analyze the business-level strategies for the corporation
: Analyze the business-level strategies for the corporation you chose to determine the business-level strategy you think is most important to the long-term success of the firm and whether or not you judge this to be a good choice. Justify your opini..
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Evidence to suggest the proportion of children with asthma
: Is there any evidence to suggest that the proportion of children with asthma who are exposed to second-hand smoke is greater than the proportion for children without asthma? Use a = 0.01.
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