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A history instructor has given the same pretest and the same final examination each semester for several years. He is interested in determining if there is a relationship between the scores of the two tests.
a. He computes the linear correlation coefficient and notes that r = 1.14. What does this correlation coefficient value tell the instructor?
b. A Mathematics instructor is also curious and conducts the same research using pretest and final results. In the case the instructor obtained an r = .82 What does this tell the instructor?
What events occurred in these months that may have caused such an extreme performance in the stock's return and describe and analyze the monthly returns using Stata's statistical and graphics capabilities.
the blood pressure measurements of a single patient were taken by twelve different medical students and the results are
Could you detail the value of using standard scores (Z scores) to compare relative performance of individual test scores.
A research firm tests the miles-per-gallon characteristics of three brands of gasoline. Becauseof different gasoline performance characteristics in different brands of automobiles, What is the advantage of attempting to remove the block effect
deduce that there exists a constant C such that for all
At a recent meeting of educational researchers comparison were made between the type of college freshmen attend and the numbers who drop out. Use a significance level of .05 and determine if the type of school and the drop out rate are independent.
Returns on stock of small firms have been shown to be symmetrically distributed, but the distributions are believed to be "long-tailed"-not well approximated.
Using Excel or any Regression Program, please run the sold price as a function of Lot Sqt, BR, and Age - also bring the computer output of the Regression.
Production technologies, terroir, and quality of Bordeaux wine. In addition to state-of-the-art technologies, the production of quality wine is strongly.
1. to help your restaurant marketing campaign target the right age levels you want to find out if there is a
We would like to collect a balanced RSS of 24 observations from a population. List all of the (set size, cycle size) combinations that could be used to obtain this balanced RSS of size 24.
a researcher was interested in determining whether incentives affect the response rate in surveys. a simple random
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