An Experimental Psychologist Is Interested in Whether the Color of an Animal's

Multiple Choice

An experimental psychologist is interested in whether the color of an animal's surroundings affects learning rate. He tests 16 rats in a box with colorful wallpaper. The average rat (of this strain) can learn to run this type of maze in a box without any special coloring in an average of 25 trials, with a variance of 64, and a normal distribution. The mean number of trials to learn the maze, for the rats tested with the colorful wallpaper, is 11.
-The shape of the distribution of means

A) will be rectangular.
B) will be flatter than a normal curve.
C) will be approximately normal.
D) cannot be determined from the information given.