18. A researcher measures the following scores for a group of people. The X variable is the number of errors on a math test, and the Y variable is the person's level of satisfaction with his/her...

18. A researcher measures the following scores for a group of people. The X variable is the number of errors on a math test, and the Y variable is the person's level of satisfaction with his/her performance. (a) With such ratio scores, what should the researcher conclude about this relationship? (Hint: Compute something!) (b) How well will he be able to predict satisfaction scores using this relationship?


Participant Errors X  Satisfaction Y
    1                   9                3
    2                   8                2
    3                   4                8
    4                   6                5
    5                   7                4
    6                  10               2
    7                   5                7