25A. The range of the numbers below is 10, 7, 7, 5, 8, 3, 4, 2

1.8

2.5.75

3.6

4.7

B. Recording the number of absences for each student during the semester would be an example of measurement on a(n) ____ scale.

1.interval

2.ordinal

3.nominal

4.ratio

C. What is measured and described by the standard deviation?

1.the square root of the average distance from the mean

2.the average squared distance from the mean

3.the average distance from the mean

4.the sum of the scores divided by the number of scores

D. If a treatment has a very small effect, then a hypothesis test evaluating the treatment is likely to

1.correctly reject the null hypothesis.

2.result in a Type II error.

3.result in a Type I error.

4.correctly fail to reject the null hypothesis.