Question 530870
P (negative c is smaller than z is smaller than c) = 0.4648 
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Draw the picture.
Since 0.2324 area is to the left of the mean,
there is a left tail of 0.5-0.2324 = 0.2676
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Then c = invNorm(0.2676) = -0.6201
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Ans: -0.6201 < z < +0.6201
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Cheers,
Stan H.