Reference no: EM131007219
For which one of the following situations would a Wilcoxon signed-rank test 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 judging 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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Prepare a process cost report for april.2
: The beginning work in process inventory for April was 80 percent complete for conversion costs, and ending work in process inventory was 20 percent complete. The ending work in process inventory for May was 30 percent complete for conversion costs..
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Discuss the issues of the proponents and opponents
: In an effort to counter the release of carbon dioxide by power plants in the United States, one thing that is being considered is that power plant owner's be allowed to invest in forests and trees that convert carbon dioxide to oxygen. Discuss the..
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Association between the value of homes
: Estimating the association between the value of homes and their age in a community known to have a number of very expensive mansions.
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Determine the effect on aggregate output-consumption
: Suppose that there is a natural disaster that destroys part of the nations capital stock. Determine the effect on aggregate output, consumption, employment, and the real wage, with reference to income and substitution effects, and explain your result..
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Quality of a basket of organic vegetables
: 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 highe..
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The price of an acupuncture session increases
: How would each of the following changes affect the demand curve for acupuncture? a. The price of an acupuncture session increases. b. A reduction in back problems occurs as a result of sessions on stretching on a popular television show.
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Discuss how that idea influencing modern government today
: Select one idea each from the modern philosophers - Sartre, Arendt, and Rawls - and discuss how that idea is influencing a modern government today
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Find the center of mass of the solid
: Find the constants. Find the center of mass of the solid bounded below by the cone z2 = x2 + y2 and above by the sphere x2 + y2 + z2 = 2az and whose density is kz.
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Are there any common root causes for these events
: How can engineers help avoid catastrophes such as the Jonestown flood, Chernobyl, the Tacoma Narrows Bridge, the Kansas City hotel walkway, Challenger and Colombia? Are there any common root causes for these events? Can you plan for failure? Can ..
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