Question 477789
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Hi,
&#956; =  $52,174 
&#963; =  $7500
a) z = (50,000-52,174)/7500 = -.2899  NORMSDIST(-0.2899) = .386 OR 38.6%
b) z = -2174/[7500/sqrt(100)]  = -2.8987  NORMSDIST(2.8987)= .0019 OR .19 %