4. z Scores If your score on your next statistics test is converted to a z score, which of these zscores 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. Significant Values. In Exercises 9-12, consider a value to be significantly low if its zscore is less than or equal to-2 or consider the value to be significantly high if its z score isgreater than or equal to 2.9. ACT The ACT test is used to assess readiness for college. In a recent year, the mean ACTscore was 21,1 and the standard deviation was 5.1. Identify the ACT scores that are significantlylow or significantly high.

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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?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

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.

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.

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