1. A student is measuring assertiveness with an interval scale. Is it correct to say that a score of 30 on the scale represents half as much assertiveness as a score of 60? Explain.
2. For each of the following sets of scores, find
ΣNi=1 Xi;
a. 2, 4, 5, 7
b. 2.1, 3.2, 3.6, 5.0, 7.2
c. 11, 14, 18, 22, 25, 28, 30
d. 110, 112, 115, 120, 133