An experiment was conducted to study the effect of the type of filter on water pollution counts for containers of water. Three types of filters were compared. The water examined came from five different sources, and thus the water source was controlled for, that is each filter was tested on water from all five sources. Using the data collected, the error sum of squares was calculated at 60. a) Type in the full name of the type of experimental design: b) Select the assumptions concerning this experimental design: OThere are no other differences in the water, besides the source of it There are no external factors that can affect the water pollution counts for the different types of filters, besides the source of the water The samples come from a population that is approximately normally distributed The samples comes from populations that have the same variance The samples were collected independently of each other