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.
Get an INSTANT, detailed estimate of the cost to Install Backer Board! Our free calculator uses up-to-date, trusted data to estimate typical subcontractor costs for a Backer Board Installation project. For a basic 120 square feet project in zip code 47474, the benchmark cost to Install Backer Board ranges between $4.62 - $7.37 per square foot* . To estimate costs for your project: