Question

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.What is the μM ?• A. 8• B. 11• C. 25• D. 64

Answer 1

Answer:  C. 25

Step-by-step explanation:

Given : The average rat (of this strain) can learn to run this type of maze in a box without any special coloring : $\mu=25$

The mean number of trials to learn the maze, for the rats tested with the colorful wallpaper= $M= 11$

We know that the sampling distribution D is given by :-

$\mu_D=\mu$

Similarly the mean of the distribution M in the given situation is given by :_

$\mu_M=\mu=25$