Reference no: EM13115165
Which hypothesis-testing procedure would you use in the following situations?
• The mean time an American family lives in a particular single-family dwelling is 11.8 years. A sample of 100 families in the Sycamore, OK area shows the mean time living in a single family residence is 12.7 years. Can we conclude that the time people live in Sycamore is significantly more than the national average?
• A researcher would like to know if there is a significant difference in clothing purchases between full-time working women, part-time working women, and women who are homemakers.
• Eighty percent of those who play the state lottery never win more than $100 in one play. A sample of 500 players was drawn and the mean winning was $125.
• A drug manufacturing company conducted a survey of customers. The research question was as follows: Is there a significant relationship between packaging preference (size of the bottle purchased) and economic status? There were four packaging sizes: small, medium, large, and jumbo. Economic status was categorized as follows: lower, middle, and upper.
• A company has 24 salespeople. The test must evaluate whether their product knowledge has improved or remained unchanged after a training program.
• A computer company has a brand loyalty rating of 6.8 on a 7 point scale. Is this company's rating significantly different from the industry average of 6.4?
• The manager of an office supply store wanted to determine which color folders she should discontinue based on low sales. The colors stocked were black, blue, red, green, and purple.
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Should the propagation and planting legally protected
: Many endangered plant and species are currently propagated by commercial growers and botanical gardens and then sold (as both plants and seeds) to government agencies, conservation organizations, garden clubs and the general public, who then in ef..
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What temperature , in celsius, is needed
: Using the same sample of gas ( = 275 , = 43 ), we wish to change the pressure to 2750 with no accompanying change in volume or amount of gas.
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Determining tax saver benefit
: A TSB (Tax Saver Benefit) plan allows you to put money into an account at the beginning of the calendar year that can be used for medical expenses. This amount is not subject to federal tax (hence the phrase TBS).
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Question regarding statistical sampling
: What are some benefits of an auditor using statistical sampling? What are some examples of statistical sampling? Does anyone have any experience they are willing to share with the class on statistical sampling?
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Which hypothesis-testing procedure is used for cases
: Which hypothesis-testing procedure would you use in the following situations? The mean time an American family lives in a particular single-family dwelling is 11.8 years.
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Explain why it is important not to touch any other area
: Explain why it is important not to touch any other area of the mouth except the pharyngeal membranes when taking a throat culture. Not how it is done but why it can not touch any other area.
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Determining break-even point-profit gained
: To produce x number of units of glass vases cost C(x)=12x + 39. My revenue is R(x)=25x. Both cost and revenue and cost are in dollars.
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How many liters of hydrogen are required
: According to Avogadro's law, how many liters of hydrogen are required to react with 1.9L of oxygen at STP.
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Explain divergence in margins
: National cereal manufacturers receive high margins for many of their cereals, often ranging from 60-75 percent.
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