A test is used to assess readiness for college. In a recent year, the mean test score was 21.2 and the standard deviation was4.9 . Identify the test scores that are significantly low or significantly high.

From the complete question, we are told to consider a value to be significantly low if its z score less than or equal to -2 or consider a value to be significantly high if its z score is greater than or equal to 2.

Thus;

2s = 2 * 4.9 = 9.8

Scores that are greater than 21.2 + 9.8 = 31 are significantly high.

Scores that are less than 21.2 - 9.8 = 11.4 are significantly low.

Thus, the test scores between 11.4 and 31 are not significantly low or significantly high.

Read more about significance values at; https://brainly.com/question/4621112

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A test is used to assess readiness for college. In a recent​ year, the mean test score was 21.2 and the standard deviation was4.9 . Identify the test scores that are significantly low or significantly high.

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A test is used to assess readiness for college. In a recent year, the mean test score was 21.2 and the standard deviation was4.9 . Identify the test scores that are significantly low or significantly high.