Reference no: EM13982934
1. According to the U.S. Bureau of Labor Statistics, the annual percentage increase in U.S. college tuition and fees in 1995 was 6.0%, in 1999 it was 4.0%, and in 2004 it was 9.5%. Are these percentages statistics or parameters? Explain.
2. According to an article in the Idaho Statesman, a poll taken the day before elections in Germany showed Chancellor Gerhard Schroeder behind his challenger, Angela Merkel, by 6 to 8 percentage points. Is this a statistic or a parameter? Explain.
3. Give the name of the kind of sampling that was most likely used in each of the following cases:
a. a Wall Street Journal poll of 2,000 people to determine the president's approval rating
b. a poll taken of each of the General Motors (GM) dealerships in Ohio in December 2008 to determine an estimate of the average number of 2008-model Chevrolets not yet sold by GM dealerships in the United States
c. a quality assurance procedure within a Frito-Lay manufacturing plant that tests every 1,000th bag ofFritos Corn Chips produced to make sure the bag is sealed properly.
d. a sampling technique in which a random sample from each of the tax brackets is obtained by the Internal Revenue Service to audit tax returns
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Express the force as a multiple of athletes weight
: How much force acts on each of her feet while she is coming to a stop? Express this force as a multiple of her weight.
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Perform an inventory for a sample of products
: Each week, employees perform an inventory for a sample of products. Certain products are selected and counted. The actual count is compared to the book count (the quantity in the records that should be in stock).
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Three different humanities disciplines
: For this project, you will choose a theme, find three expressions of that theme in three different humanities disciplines, describe the three different presentations, and offer an analysis and reflection.*The skills you need for this assignment will ..
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Constitute a statistical or a nonstatistical sample
: You then sort by the random numbers in ascending order. Finally, you take the first 50 sorted employees as your sample. Does this approach constitute a statistical or a nonstatistical sample?
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Determine the president approval rating
: Give the name of the kind of sampling that was most likely used in each of the following cases: a Wall Street Journal poll of 2,000 people to determine the president's approval rating
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Find some research/statistics about media''s impact
: Find some research/statistics about media's impact on society. There are many areas to consider, so choose an area you believe has a significant impact. (examples: advertising, movies, television, video games, social media, etc.)Summarize the researc..
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Problem regarding the systematic random sampling
: A company has 18,000 employees. The file containing the names is ordered by employee number from 1 to 18,000. If a sample of 100 employees is to be selected from the 18,000 using systematic random sampling, within what range of employee numbers wi..
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What is the minimum constant workforce
: Mr. Meadows Cookie Company makes a variety of chocolate chip cookies in the plant in Albion, Michigan. Based on orders received and forecasts of buying habits,What is the minimum constant workforce required to meet demand over the next four months
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Problem regarding the types of bias
: According to a national CNN/USA/Gallup survey of 1,025 adults, conducted March 14-16, 2008, 63% say they have experienced a hardship because of rising gasoline prices. How do you believe the survey was conducted and what types of bias could occur ..
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