I think the easiest method is to calculate the skewness and kurtosis of your data. If both are near enough to zero, it's normal. To get the score one method often used is the Jarque-Beta test which gives you the p-value given the calculated skewness and kurtosis. share | cite | improve this answer.
Note that surface texturing or skim coating is NOT included in this estimate. For a basic 500 square feet project in zip code 47474, the benchmark cost to Hang Drywall ranges between $1.43 - $1.76 per square foot* .To estimate costs for your project: 1.or a basic 500 square feet project in zip code 47474, the benchmark cost to Hang Drywall ranges between $1.43 - $1.76 per square foot* . To estimate costs for your project:
1 Do-It-Yourselfers can bring the costs down to $150-$250 for a 12x12 room and $1,000-$3,000 for a small house, but hanging drywall requires a lot of heavy lifting by at least two people, and getting a good finish on drywall requires a lot of patience and practice. For about 4,000 square feet of drywall on all the walls and ceilings of a small home, it's $4,400-$8,600 or more. 2  Factors such as cathedral ceilings or irregular layouts can bump the price higher.