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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.
discuss type i and type ii errors in relation to a control chart. what practical implication in terms of process
Discuss how t test can be employed in hypothesis testing by the use of directional vs. nondirectional hypotheses. Discuss types of research where using the t statistic may be an appropriate alternative to using a z-score.
What are the similarities and differences between the revolutions that erupted in England, the United States, France, and Haiti, in the 17th and 18th centuries? Pay attention to issues of social class, gender, and ideologies in comparing the diff..
Find the bandwidth that contains 99% of the total power in the random process. - Determine how many frequency samples are needed for the frequency domain method.
Use the ustudy.sav file. This time, consider that you collected data only on ACADRNK, YRSPHD, SALARY, and PUBLCTN from the 20 faculty. The purpose of your analysis is to group this faculty into separate clusters based on the data you have.
Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 55 families will be between 17 & 18 pounds.
One purpose of displaying data graphically
What is the relationship between the sign of the correlation coefficient and the sign of the slope of the regression line?
In 2009, the average fee paid by H&R Block tax preparation customers was $187. Assume that the standard deviation of fees was $60 but that we have no idea regarding the shape of the population distribution.
a survey from teenage research unlimited found that 30 of teenage consumers receive their spending money from part-time
A sales analyst wants to determine whether there is a difference in the mean monthly sales of a company's four sales regions. Several salespersons from each region are randomly selected and each provides his or her sales amounts (in thousands of d..
Determine regression equation. Use assets as independent variables. For fund with $400.0 million in sales, determineut five-year rate of return (in percent).
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