3) Professor Chaos eng neering final exam has a mean of -79 and -7. After standa

Question

3) Professor Chaos eng neering final exam has a mean of -79 and -7. After standardizing the exam scores, the mean is -80 and -5. How did Professor Chao arrive at these new standardized scores for the exam? a. Deciding what values will be simple to calculate C. Comparing z-scores across all exams in the college d. Selecting the nearest values that are multiples 4) As part of a clinical research project, a sample population has been using an experimental drug ntended to improve memory. Study participants completed a comprehensive memory test following six weeks of treatment. The results were standardized and compared to mean results for the full population. Which of the following participants indicates promising results for this drug treatment? a. Ahmad, a 61-year-old man with a memory test z-score of +50 b. Ellie, a 52-year-old woman with a memory test z score of +2.75 c. Javier, a 48-year-old man with a memory test z-score of -.25

Explanation / Answer

1. C) Comparison with all scores across the college would have resulted in the scores being standardised

2. most promising results are displayed by the record with the highest z score. thus answer is B

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