Posted by **david** on Thursday, July 14, 2011 at 3:30pm.

In a survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation of 3.03.

Given that Normally distributed populations have a first quartile of Z=-0.67 and a third quartile of Z=.67, what does this suggest about whether or not these guesses are normally distributed? The actual first quartile is 20 and the third is 23.

I am so lost i don't know how to do the steps or if a Z scored formula should even be applied. Thank you

## Answer This Question

## Related Questions

- statistics - In our initial survey, the guess at the mean age for the class had ...
- statistics - In our initial survey, the guess at the mean age for the class had ...
- statistics - In our initial survey, the guess at the mean age for the class had ...
- statistics - In our initial survey, the guess at the mean age for the class had ...
- math - No idea how to do this. I looked in my book and there usually is a data ...
- statistics - Scores on an English test are Normally distributed with a mean of ...
- statistics - For a particular sample of 71 scores on a psychology exam, the ...
- Elementary statistics - Scores on an English test are normally distributed with...
- (math) statistic - For a particular sample of 63 scores on a psychology exam, ...
- Statistics (Math) - A government report looked at the amount borrowed for ...

More Related Questions