Ten Subjects Were Weighed Before and After a New Diet

Multiple Choice

Ten subjects were weighed before and after a new diet. The results were as follows. $$\begin{array} { l | c c c c c c c c c c } \text { Subject } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\\hline \text { Before } & 151 & 183 & 222 & 176 & 193 & 202 & 150 & 200 & 178 & 190 \\\text { After } & 135 & 164 & 206 & 188 & 199 & 202 & 139 & 195 & 178 & 198\end{array}$$ a) Compute the test statistic b) Can you conclude that the median weight differs before and after the diet? Use the α = 0.05 level Of significance.

A) a) S=11
b) We cannot conclude that the weights before and after the diet are different.
B) a) S=11
b) We can conclude that the weights before and after the diet are different.
C) a) S=10
b) We cannot conclude that the weights before and after the diet are different.
D) a) S=10
b) We can conclude that the weights before and after the diet are different.