Saturday

July 26, 2014

July 26, 2014

Posted by **Benjamin** on Sunday, November 14, 2010 at 5:13pm.

a.) If one female is selected at Random, what is the probablility that shes has a height 70 inches or higher?

b.) The heights of 50 females were measured at a national collegiate volleyball tournament. The sample mean height was found to be 70 inches. using the population parameters given above, what is the probability of botaining a sample mean height of 70 inches or higher with a random sample of 50 females?

c.)Does the probability you found in (b) make you question the population mean stated for female heights? Justify why you believe this sample mean may not be representative of the population of female heights?

- Satistics -
**PsyDAG**, Monday, November 15, 2010 at 10:13ama. Z = (score-mean)/SD

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

b. This is a distribution of means rather than raw scores.

Z = (Sample mean- population mean)/SEm

SEm (standard error of the mean) = SD/√(n-1)

Use same table.

c. Might volleyball players be a biased sample?

**Related Questions**

statistics - Suppose that the heights of female adults in the US are normally ...

math - The distribution of heights of adult American men is approximately normal...

Statistics - The distribution of heights of adult American men is approximately ...

AP Stats - The distribution of heights of adult American men is approximately ...

statistics - Assume that the population of heights of female college students ...

Statistics - The heights of the students in a statistics class are approximately...

statistics - The distribution of heights of American women aged 18 to 24 is ...

Statistics - The distribution of heights of American women aged 18 to 24 is ...

stat - Assume that the population of heights of female college students is ...

Statistics - The distribution of heights of adult males has a mean of 69 inches ...