Final answer:
Students with z-scores greater than 0 scored above the mean. Susan's z-score of 2.0 confirms that she scored above the mean; however, other students' z-scores were not provided, and hence cannot be assessed with the information given.
Step-by-step explanation:
The question relates to determining which students scored above the mean on their final exam based on their z-scores. A z-score is a measure of how many standard deviations an element is from the mean. A z-score above 0 indicates a score above the mean, while a z-score below 0 indicates a score below the mean.
To answer the question provided, we need to look at the listed z-scores and identify those that are positive because a positive z-score denotes a score that is above the mean.
Since we are given that Susan has a z-score of 2.0, we can confidently say that she scored above the mean. Without specific z-scores for the other students, we would need that information to determine which among Jan, Joel, Juan, Linda, and Robert has a z-score greater than 0. Only the students with z-scores greater than 0 would be the ones who scored above the mean.