The cost for a new roof for a bungalow can vary regarding the material it`s made off and also on the roof area. My pinion is that is cheaper to lower the ceiling and raise the roof. The price of a small bungalow is about 2000 dollars. Tom Darkman.
A statistical question is a question that can be answered by collecting data and where there will be variability in the data. This is different from a question that anticipates a deterministic answer.
A test of the null hypothesis that the difference between two responses measured on the same statistical unit has a mean value of zero. For example, suppose we measure the size of a cancer patient's tumor before and after a treatment.