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.
Hardie board is a type of siding constructed of cement fibers by James Hardie Building Products Inc. It is very durable and can withstand extreme weather conditions and insects. To cut this type of siding, use a masonry blade. Masonry blade types include abrasive materials or vented diamond blades that are used for dry cutting. The blades are designed to be used with most cutting tools, including circular, table and miter saws.