2. I have data sets (measurements) and I need to know if values are normally distributed. I would like to get this information programmatically in my application and not via plotting and checking it visually myself.
1 Installing a standard solid-strip hardwood floor averages about $8 a square foot for materials, insulation and site finishing, and up to $12 a square foot for wide pine planks, or $1,150-$1,750 for a 12x12-foot room.
The average cost to refinish hardwood flooring ranges from $1-$3 per square foot, depending on the condition of the wood flooring. If the hardwood is still in fairly good condition, the cost will be lower.