4. z Scores If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: –2.00, –1.00, 0, 1.00, 2.00? Why? z Scores. In Exercises 5–8, express all z...

Extracted text: 4. z Scores If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: –2.00, –1.00, 0, 1.00, 2.00? Why? z Scores. In Exercises 5–8, express all z scores with two decimal places.


Extracted text: Significant Values. In Exercises 9-12, consider a value to be significantly low if its z score is less than or equal to-2 or consider the value to be significantly high if its z score is greater than or equal to 2. 9. ACT The ACT test is used to assess readiness for college. In a recent year, the mean ACT score was 21,1 and the standard deviation was 5.1. Identify the ACT scores that are significantly low or significantly high.