MATH 533 Week 3 Homework Problems..
Course: MATH 533 Applied Managerial Statistics Institution: DeVry Contributor: Mike Mentzer Format: DOCX/PPTX Pages: 12
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z-score x Mean StDev n1 5 90 80 z=(x-μ)/σ Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is th z value80 mean90 variance25 Standard Deviation is the square root of standard deviation = square root of va standard deviation = square root(25) -2.00 z-score = Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. What is th z valueSt Dev mean905 variance25 LESS ThanGREATER Than P(X < x) x Precise answer 0.022750 80 x P(X > x) 22 1.000000 Which one of the following is not a characteristic of a normal distribution? If
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