(11.09) A government sample survey plans to measure the blood cholesterol level of an SRS of
men aged 20 to 34.
Suppose that in fact the blood cholesterol level of all men aged 20 to 34 follows the Normal
distribution with mean ? = 186 milligrams per deciliter (mg/dl) and standard deviation ? = 41
mg/dl. Use Table A for the following questions, where necessary.
Choose an SRS of 1000 men from this population.
Now what is the probability that x falls within
Solution
3=Z(alpha/2)*41/sqrt(1000)
Z(Alpha/2)=2.31
alpha/2=0.9896.
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(11.09) A government sample survey plans to measure the blood chole.pdf
1. (11.09) A government sample survey plans to measure the blood cholesterol level of an SRS of
men aged 20 to 34.
Suppose that in fact the blood cholesterol level of all men aged 20 to 34 follows the Normal
distribution with mean ? = 186 milligrams per deciliter (mg/dl) and standard deviation ? = 41
mg/dl. Use Table A for the following questions, where necessary.
Choose an SRS of 1000 men from this population.
Now what is the probability that x falls within
Solution
3=Z(alpha/2)*41/sqrt(1000)
Z(Alpha/2)=2.31
alpha/2=0.9896
