Question

A science test was given to boys and girls from three different schools. Rudolph, a junior researcher, wants to analyze the difference in the variability of the mean scores among the three schools. The appropriate statistical test would be the

Answer 1

The appropraite statistical test that would be used to measure the difference  in the variability of the mean scores among the three schools is mean absolute deviation.

What is the mean absolute deviation?

Mean absolute deviation is the average of the absolute difference between the data set and its mean. Mean absolute deviation is used to measure spread.

MAD =  $\frac{1}{n}$∑ l x - m(x) l

Where:

• x = data set
• m = mean

To learn more about mean absolute deviation, please check: https://brainly.com/question/27365177