Often the raw data itself is not normally distributed, but the logarithm of the data may in fact be a normally distributed set. To test if your numbers are log-normal, take the logarithm of each point, then apply one or all of the tests above.
Because labor costs vary across the country, the cost of adding Hardie board siding to a home depends on location. The Bureau of Labor Statistics show that as of May 2010, installers made a mean $21.10 per hour, with lows of $11.85 and highs of $34.45.
1 Install 6X6 box columns w/ ScreenTight screen system-Average at $1.80 per square foot of opening. 2  Total cost for materials is $1080, plus installation** time of 24 hours. 3  Install bead board ceiling-Average price per bundle (6 boards at 8' lengths) $30.