Reference no: EM131008033
For which one of the following situations would Kendall's tau be appropriate?
a) The Mohs scale rates the hardness of minerals. If one mineral can scratch another, it is judged to be harder. (Diamond, the hardest mineral, is a 10.) Is hardness related to the weight of a 1 * 1 * 1 cm cube of the mineral?
b) Each member of a group of professional chefs rates the quality of a basket of organic vegetables on a 5-point scale. The same chefs then rate the quality of a basket of non- organic vegetables on the same scale. Are the organic veggies rated higher?
c) During its initial release, is there an association between the number of downloads of a new smartphone game and the number of hours since it has been released?
d) The Richter scale measures the damage potential of earthquakes. Some scientists think it is best used for judg- ing the relative size of earthquakes and not their absolute size. Are earthquakes around the Pacific "ring of fire" rim stronger in general than those around the Atlantic? Compare earthquakes over a recent 5 year period.
e) A dog's intelligence can be judged roughly by how many times a new command must be repeated until it is learned. A researcher trained several dogs of each of 4 different breeds, teaching them 3 new commands. Are the breeds equally "intelligent?"
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Recent criticism of sugar content of children cereals
: Cereal sugar. A food company is concerned about recent criticism of the sugar content of their children's cereals. The data show the sugar content (as a percentage of weight) of several national brands of children's and adults' cereals. Are childr..
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What is the maximum concentration of the antibiotic
: After an antibiotic tablet is taken, the concentration of the antibiotic in the bloodstream is modeled. What is the maximum concentration of the antibiotic during the first 12 hours?
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When preparing the statement of cash flows
: When preparing the statement of cash flows, companies are required to report separately as operating cash flows all of the following except a. interest received on investments in bonds. b. interest paid on the company's bonds. c. cash collected from ..
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Scale by a panel of consumers
: Comparing the ratings of a new product on a 5-point Likert scale by a panel of consumers to their ratings of a competitor's product on the same scale.
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Scale rates the hardness of minerals
: The Mohs scale rates the hardness of minerals. If one mineral can scratch another, it is judged to be harder. (Diamond, the hardest mineral, is a 10.) Is hardness related to the weight of a 1 * 1 * 1 cm cube of the mineral?
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How many potential customers are waiting to be served
: Draw the payoff at expiration and profit at expiration (on the same graph) for your vertical put spread. At what stock price will the profit be zero?
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Panel of consumers to their ratings of a competitor
: Comparing the ratings of a new product on a 5-point Likert scale by a panel of consumers to their ratings of a competitor's product on the same scale.
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Identify the legislation that introduced medicare
: Identify the legislation that introduced Medicare and the funding source for the program. Identify some of the changes that have occurred in the Medicare program since its inception
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Find the equation for the plane containing the parallelogram
: Find the equation for the plane containing the parallelogram shown. Find the area of the parallelogram with sides x→ and y→ as shown.
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