Answer Question

A natural wellness and beauty company claims that, on average, their new product lowers blood pressure. A group of six consumers was randomly selected and their systolic blood pressure was measured before and one month after they started taking the supplement. Results are shown in the table below. The "before" value is matched to the "after" value, and the difference should be calculated. Suppose that it is known that such differences have approximately bell-shaped distribution. Part |. Suppose that differences are d = Before After . Find the sample mean d and sample standard deviation 3.; of the differences. Step 1. Fill in the column "d = Before After \" of the table. Then, calculate d and fill in the cell below the table. Step 2. Using d , fill in the last two columns of the table. \"In (._ .) -\"E-E-IE- \"ME-E-E- IE-E-E-E- Sample mean of the differences' Is 41: Please, round your answer to 2 decimal places. Standard deviation of the differences is 8d = C]