8-28. A particular socioeconomic group has a mean annual income of = $35,800 with =...
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8-28. A particular socioeconomic group has a mean annual income of μ =
$35,800 with σ = $3,500. A random sample of n = 250 individuals from this group is taken. What is the probability that X will be within $500 of μ?
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Related Book For
Advanced Statistics From An Elementary Point Of View
ISBN: 9780120884940
1st Edition
Authors: Michael J Panik
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