Friday

October 24, 2014

October 24, 2014

Posted by **donna hull** on Thursday, February 21, 2013 at 10:00pm.

- statistics -
**JJ**, Friday, February 22, 2013 at 9:38amWe need to know some other information. Like the mean and standard deviation for these scores.

subtract the mean from 37.5 and divide by the standard deviation to get a z-score.

do the same for 39.

Use a z-table to find the percentage of scores that will be between the two numbers.

**Answer this Question**

**Related Questions**

statistics - Assume that a set of test scores is normally distributed with a ...

statistics - Using teh 68-95-99.7rule. Assume that a set of test scores is ...

Math-statistics - Assume that a set of test scores is normally distributed with ...

statistics - Assume that a set of test scores is normally distributed with a ...

statistics - Assume that a set of test scores is normally distributed with a ...

statistics - Assume that a set of test scores is normally distrbuted with a mean...

Statistics - Assume that a set of test scores is normally distributed with a ...

Statistics... I need help - . Assume that a set of test scores is normally ...

statistics - Assume that a set of test scores is normally distributed with a ...

statistics - Using the 68-95-99.7 rule: Assume that a set of test scores is ...