A Researcher Is Running an Experiment with Two Conditions What Was the Mean of Each Group

Essay

A researcher is running an experiment with two conditions. One in which she asks participants to bite into an apple when remembering a list of words to prevent them from rehearsing the words (i.e., saying them aid memory) and another group where they do not bite into an apple. Below are the data showing the number of words participants were able to recall out of 30.
$$\begin{array} { c c c c } \hline \text { Bite } & f & \text { NoBite } & f \\\hline 5 & 11 & 5 & 4 \\6 & 8 & 6 & 5 \\7 & 14 & 7 & 6 \\8 & 12 & 8 & 14 \\9 & 15 & 9 & 13 \\10 & 16 & 10 & 12 \\11 & 5 & 11 & 15 \\12 & 6 & 12 & 8 \\13 & 3 & 13 & 4 \\14 & 2 & 14 & 9 \\15 & 1 & 15 & 2 \\16 & 0 & 16 & 0 \\17 & 0 & 17 & 1 \\\hline\end{array}$$ What was the mean of each group?