When conducting significance test to find out if there is difference between two treatments, with a quantitative response variable, both treatments given to the same experimental units, we summarize the data by:
A. computing the mean and standard deviation of each treatment group separately.
B. computing the difference in the responses for each experimental unit under both treatments, and then finding the mean and standard deviation of the differences.
C. computing the proportion of the sample that reacted better to treatment one than treatment two.
D. computing the difference in the proportion of the sample that reacted better to treatment one and the proportion of the sample that reacted better to treatment two.