Question

This spring, after having all college courses suddenly transition to online, a survey was given to a sample of undergraduate students across the country to determine their anxiety levels. In that sample, = 75 and = 4. Remember: when reporting relative frequency or proportion for these types of questions do NOT round your answer.

1. Suzanne took the survey and scored an 87. What is her z-score?

2. What is the relative frequency of scores that fall between the mean and Suzanne’s score?

3. What proportion of the scores in the sample were higher than Suzanne’s score?

4. There were 500 people in the sample. How many people had scores that fall between the mean and Suzanne’s score?

5. Suzanne’s score is in what percentile?

Answer 1

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