Homework Help: statistics

Posted by Zachovia on Monday, February 4, 2013 at 12:08pm.

Suppose that, in fact, the blood cholesterol level of all men aged 20 to 34 follows the normal distribution with mean of u = 188 milligrams per deciliter (mg/dl) and standard deviation = 41 mg/dl.

1. Choose an SRS of 100 men from this population. What is the sampling distribution of x? What is the probability that x takes a value between 185 and 191 mg/dl? This is the probability that x estimates u within ą 3 mg/dl.

statistics - PsyDAG, Monday, February 4, 2013 at 12:12pm
Z = (score-mean)/SEm

SEm = SD/√n

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z scores.
statistics - Anonymous, Sunday, February 24, 2013 at 1:31pm
376.867

Answer this Question

Related Questions

Statistics - Suppose that, in fact, the blood cholesterol level of all men aged ...
Statistics - The serum cholesterol levels in men aged 18 to 24 are normally ...
statistics - The cholesterol levels of young women aged 20 to 34 vary ...
stats - blood cholesterol level of all men age 20-24 follows N(188,41) where the...
Statistics - Suppose the heights of women aged 20 to 29 follow approximately the...
Statistics - Suppose we have a set of blood pressures with a mean of 120 ...
statistics - mean cholesterol is 175mg/dl..standard deviation =20mg/dl assume ...
elementary statistics - The distribution of cholesterol levels in teenage boys ...
nath - the graph shows the annual heart attack rate per 10,000 men as a function...
statistics - suppose you have a set of blood pressures with a mean of 80 ...

For Further Reading

First Name:
School Subject:
Answer: