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:
Drywall materials (drywall sheets plus screws or nails, joint compound, tape, etc.) average 25 cents - 65 cents a square foot; professional installation is an additional 85 cents -$1.50 per square foot. Installing new drywall on the walls and ceiling of a 12x12-foot-room with 8-foot-high walls means about 530 square feet of drywall.