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dealing with not quite lognormal data

dealing with not quite lognormal data

dealing with not quite lognormal data

(OP)
I am dealing with some data that is skewed.  The median is lower than the mean and the standard deviation is fairly high.  The outliers have a significant influence on the mean and the standard deviation.  When I do a natural log or ln transformation, it looks somewhat but not quite normal.  I'm trying to find out what amount of inaccuracy I'm getting if I blindly proceed along the lines that it is a lognormal distribution.

I looked at the normality test in MiniTab and it looks like an arc or a boomerang shape rather than a straight line.  On the descriptive statistics of the ln data, I get a p value < .05, so it again confirms that the transformed data is not behaving like a normal distribution.

Any suggestions?  I can post some of the data or results so far if that would help.

Thanks in advance.  

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