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An urn contains 8 balls identical in every respect except color. There are 4 blue balls, 3 red balls, and 1 white ball.
a) If you draw one ball from the urn what is the probability that it is blue or white?
b) If you draw two balls without replacing the first one, what is the probability that the first ball is red and the second ball is white?
c) If you draw two balls without replacing the first one, what is the probability that one ball is red and the other is white?
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A researcher has a series of Likert-scale items and a measure of frequency of absenteeism. He uses each of the Likert-scaled items in a separate bivariate correlation with absenteeism without testing for the assumptions of linear relationships. Is th..
Utilize a test of the difference among proportions when answering these questions. Illustrate the research hypothesis.
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Is there evidence to suggest a difference in the mean waiting times at the four body shops?
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