Monday

March 30, 2015

March 30, 2015

Posted by **melinda** on Wednesday, October 17, 2012 at 10:27am.

- staticstics -
**MathGuru**, Wednesday, October 17, 2012 at 7:07pmUse z-scores using sample size:

z = (x - mean)/(sd/√n)

Find two scores:

z = (32 - 30)/(5.7/√31)

z = (28 - 30)/(5.7/√31)

Find the probability between the two z-scores using a z-table. Subtract that value from 1 for your answer.

I hope this will help get you started.

**Answer this Question**

**Related Questions**

staticstics - The average length of an adult blue whate is 30 meters with a ...

math - Can I gt some help on these questions! 1.Research subjects that are ...

English - 1. How long are blue whales? - They are about 30 meters long. 1-2. How...

statistics - The average temperature in households is 67.6 degrees F. The ...

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

Statistics - Assume that the sample is taken from a large population and the ...

algebra - The heights of the trees in a forest are normally distributed, with a...

statistics - An agricultural economist is interested in determining the average ...

statistics - The average temperature in households is 67.6 degrees F. The ...

statistics - You have a box of 15 widgets whose average weight for each ...