A study was conducted to evaluate a new method of teaching medication dose calculation to nursing students. The mean score on the exam was X = 82.3 with a standard deviation of 4.6. What is the range of scores for 95.44% of the students?
1. 77.7–86.9
2. 73.1–91.5
3. 68.5–96.1
4. 70.1–90.5
3
Rationale 1: Scores of 77.7–86.9 would account for 68.26% of the scores (1 SD).
Rationale 2: Scores of 73.1–91.5 would account for 95.44% of the scores (2 SD).
Rationale 3: Scores of 68.5–96.1 would account for 99.72% of the scores (3 SD).
Rationale 4: Scores of 70.1–90.5 do not accurately represent a specific range of scores.
Global Rationale:
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