QuestionFind the $z$-score for a test score of 48.4 (mean 66, SD 11) and check if it's significant ($z < -2$ or $z > 2$).

Studdy Solution
Now that we have the $z$-score, we can determine whether the test score is significant. A score is considered significant if its $z$-score is less than -2.00 or greater than2.00.
Since $-2.00 < -1.6 <2.00$, the test score of48.4 is not considered significant.
The $z$-score for the test score of48.4 is -1.6, and the score is not significant.