show a working calculation to get the answer Eight subjects were weighed before and after a new three-week "healthy" diet. At the 0.05 level of significance, can it be concluded that a difference in...

show a working calculation to get the answer

 Eight subjects were weighed before and after a new three-week "healthy" diet.
At the 0.05 level of significance, can it be concluded that a difference in weight
resulted? (Weights are in pounds.). Is there enough evidence to support the
claim?