Question 522105: Find the z-scores for which 20% of the distribution’s area lies between -z and z.
A. -0.719, 0.719
B. -0.253, 0.253
C. -0.528, 0.528
D. -0.842, 0.842
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Find the z-scores for which 20% of the distribution’s area
lies between -z and z.
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Draw the picture so you can see the sense of the solution.
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Find the z-value with a left tail of 40%
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invNorm(0.4) = -0.2533
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So the answer is "B".
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Cheers,
Stan H.
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A. -0.719, 0.719
B. -0.253, 0.253
C. -0.528, 0.528
D. -0.842, 0.842
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