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As part of an affirmative-action litigation. records were prod uced showing the average salaries earned by White, Black, and Hispanic workers in a large manufacturing planL Three different departments were selected at random for the comparison. The entries shown are average annual salaries, in thousands of dollars.
White
Black
Hispanic
Department 1
20.2
19.8
19.9
Department 2
20.6
19.0
19.2
Department 3
19.7
20.0
18.4
a national magazine claims that the average college student watches less tv than the general public. the national
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an electronic product contains 25 integrated circuits. the probability that any integrated circuit is defective is 0.01
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suppose that the mean value of interpupillary distance the distance between the pupils of the left and right eyes for
Ann and Jim, two employees in a fast-food restaurant, play the following game while waiting for customers to arrive: Jim pays Ann 2 cents if the next customer does not arrive within 1 minute; otherwise, Ann pays Jim 2 cents. Determine Jim's averag..
Define the decision rule. Calculate the value of the test statistic.
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Let A be the event that a randomly chosen employee has a college degree and B the event that the chosen employee's income is more than $50,000.
Given that the test has a mean of 1000 and a standard deviation of 200 what is the lowest possible score needed for acceptance?
a) Find the marginal density of Y. b) Find E(X) HINT: What is E (X|Y=y) ?
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