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September 23, 2014

September 23, 2014

Posted by **savon** on Monday, July 28, 2008 at 4:18pm.

a mean of 32 hours and a standard deviation of 2 hours to erect the Red barn model. Assume the assembley follow the normal distribution.

a. Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect?

- statistic -
**drwls**, Monday, July 28, 2008 at 8:37pmThe z value for 29 is (29-32)/2 = -1.5

The z value for 34 is (34-32)/2 = 1.0

The probability for 32 to 34 is 34.1%

I used the graphical tool at http://psych-www.colorado.edu/~mcclella/java/normal/accurateNormal.html to get that last result

- statistic -
**katie**, Tuesday, July 29, 2008 at 4:32pmthe accontieg depatment at

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