Fred made 103 and Frank made 96 on an achievement test with a confidence interval of 4.These results indicate that
A)Fred's true score is definitely higher than Frank's true score.
B)measurement error can account for the differences in their scores.
C)the true scores of each student are probably very close.
D)the test used to generate these scores must be very reliable.

Question

Quizplus · Accepted Answer

The confidence interval of 4 suggests that the difference in scores could be due to measurement error, meaning Fred's and Frank's true scores might not be significantly different.

Fred Made 103 and Frank Made 96 on an Achievement