Sunday

November 23, 2014

November 23, 2014

Posted by **darrell** on Friday, January 6, 2012 at 2:59pm.

a. what is the probability that the sample mean will be greater than m=510? in symbols, what is p(m>510)?

b. what is the probability that the sample mean will be greater than m=520? in symbols, what is p(m>520)?

c. what is the probability that the sample mean will between m=510 and m=520? in symbols, what is p(510<m<520)?

- probability and statistics -
**PsyDAG**, Sunday, January 8, 2012 at 12:51pmZ = (score-mean)/SEm

SEm = SD/√n

Treat the new mean as a score.

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

**Answer this Question**

**Related Questions**

statistics - The population of SAT scores forms a normal distribution with a ...

statistics - The distribution of scores on the SAT is approx. normal with mu= ...

statistics - sat scores around the nation tend to have a mean score of about 500...

statistics - SAT scores are normally distributed. The SAT in English has a mean ...

stats - SAT math scores approx. follow a normal distribution, with mean 500 and ...

statistics - Suppose a population distribution of SAT scores has population mean...

statistics - Suppose scores on the mathematics section of the SAT follow a ...

statistics - Suppose scores on the mathematics section of the SAT follow a ...

statistics - Sat scores l around the nation tend to have a mean score around 500...

statistics/please check calculations - questions reads as follows: sat scores ...