Posted by **John** on Monday, June 14, 2010 at 2:32pm.

Suppose x has a distributionwith u=72 and 0=8 if random samples of size n=16 are selected, can we say anything about the x distributin of sample means

if the originalx distribution is normal can we say anything about the x distribution of random samples of size 16 find p(68<x,< 73

- Statistics -
**PsyDAG**, Wednesday, June 16, 2010 at 2:49am
Z = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√(n-1)

If only one SD is provided, you can use just that to determine SEdiff.

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion between the Z scores.

## Answer This Question

## Related Questions

- statistics - Random samples of size n are selected from a normal population ...
- statistics - 8. Suppose that the IQ score for a person selected from a certain ...
- statistics - Suppose we take a random sample of size n from a normal population ...
- statistics - Statistical Abstracts (117th edition) reports sale price of ...
- Statistics - 1. The scores of students on the ACT college entrance examination ...
- STATISTICS HELP!!!!!!! - Statistical Abstracts (117th edition) reports sale ...
- statistics - The scores of students on the ACT college entrance examination in ...
- College statistics - Statistical Abstracts (117th edition) reports sale price ...
- statistics - Suppose X has a mound-shaped distribution with sigma=9. A random ...
- statistics - samples of size n=900 are randomly selected from the population of ...

More Related Questions