A student performed an investigation to determine whether the length of mussel shells varied vased on their location. Two groups of 15 mussel shells were collected, each in
different location along a rocky shore. The first group (location A) had a mean length of
61.0 +/- 10.9 cm. The second group (location B) had a mean length of 33.1 +/- 6.7 cm.
Which statement best describes the data collected?