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Question: Making colleges look good. Colleges announce an "average" SAT score for their entering freshmen. Usually the college would like this "average" to be as high as possible. A New York Times article noted, "Private colleges that buy lots of top students with merit scholarships prefer the mean, while open-enrollment public institutions like medians." Use what you know about the behavior of means and medians to explain these preferences.
Which changed more from 2010 to 2011: the probability of one customer purchasing a desktop computer with an Intel chip or the probability of four customers all purchasing desktop computers with Intel chips?
Describe the factors that might cause variation in weight of Tootsie Rolls during manufacture.
A random sample of 100 students at Southern University was collected. The mean age was found to be 24.2 years, with a standard deviation of 3.4 years.
Of the top 20 global brands, 24 of them (70 percent) are from United States-based corporations. What effects might this weighing have on the global consumer?
an estimate of a population parameter that provides an interval of values believed to contain the value of the
A mean given by mu=143 lb and a standard deviation given by sigma=29 lb. If 1 woman is randomly selected, find the probability that her weight is below 113
Carry out the Wilcoxon rank sum test. State hypotheses and give the rank sum W for high-progress readers, its P-value, and your conclusion. Do the t and Wilcoxon tests lead you to different conclusions?
a company produces packets of soap powder labeled giant size 33 oz. past testing of the production process has allowed
A cash flow diagram indicates the amounts paid or received by a stakeholder. For the operations and maintenance of a typical transit system in your community, list the amounts typically encountered in the cash flow stream over the life of the syst..
calculate the standard deviation for random variable
a left-tail area in the chi-square distribution equals 0.95. for df10 the table value
Two popular drugs used for the treatment of depression are Resithan and Exemor. A random sample of 588 depressed individuals is selected and treated with Resithan, and 201 find relief from their depression.
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