SOLUTION: Cholesterol.. A test involving 380 men ages 20 to 24 found that their blood cholesterol levels had a mean of 181 mg/dl and a standard deviation of 44.2 mg/dl. a. Determine the z-s

Question 1170487: Cholesterol.. A test involving 380 men ages 20 to 24 found that their blood cholesterol levels had a mean of 181 mg/dl and a standard deviation of 44.2 mg/dl.
a. Determine the z-score to the nearest hundredth for one of the men who had a blood cholesterol level of 214 mg/dl.
b. The z-score for one man was 1.58. What was the blood cholesterol level? Round to the nearest hundredth.

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=(x-mean)/sd
=(214-181)/44.2=+0.747 or 0.75
-
1.58=(x-mean)/44.7
x-mean=70.63
x=251.63 mg%
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