Data Set 10-3: an Experimenter Matched by Weight Four Pairs $$\begin{array} { c c } 24 \text { hours } & 48 \text { hours } \\\hline 26 & 18 \\35 & 24 \\23 & 17 \\30 & 14\end{array}$$

Data Set 10-3: An experimenter matched by weight four pairs of volunteers. One member of each pair was randomly assigned to one of the two groups. One group fasted for 24 hours and the other for 48 hours. Scores below represent the number of ounces of Yummi (very vanilla) consumed during the first 10 minutes after the fast. Test for a difference at the .05 level.
$$\begin{array} { c c } 24 \text { hours } & 48 \text { hours } \\\hline 26 & 18 \\35 & 24 \\23 & 17 \\30 & 14\end{array}$$
-The experiment described in Data Set 10-3 is an example of

A) a paired samples design
B) an independent samples design
C) determining the probability that a sample was drawn from a population with a known mean
D) cannot be determined from the information given.