Applied Statistics Exercise 20

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Applied Statistics at Grand Canyon University Exercise 20 from Workbook

1. Which patient scored the highest on the preoperative CVLT Acquisition? What was his or her T score?
The 3rd patient scored 63 which is the highest CVLT T-score.

2. Which patient scored the lowest on postoperative CVLT Retrieval? What was this patient’s T score?

The 4th patient scored the lowest on the postoperative CVLT Retrieval with a score of 23.

3. Did the patient in Question 2 have more of a memory performance decline than average on the CVLT Retrieval? Provide a rationale for your answer.

Yes, because he scored 23 and the average is 38.2.

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4. What is the mean ( X) and standard deviation (SD) for preoperative T score for CVLT Acquisition?

The mean for preoperative T score for CVLT acquisition is 46.35, and the SD is 5.061, calculated using Excel auto sum function.

5. Is the preoperative Retrieval T score for Patient 5 above or below the mean for the norm of the group? Provide a rationale for your answer.

The score for patient 5 on preoperative Retrieval T score (52) is above the mean for the norm of the group (47.36).

6. Assuming that the distribution of the preoperative CVLT Retrieval T scores is normal, the middle 68% of the patients had T scores between what two values?

7. Assuming that the distribution of scores for the postoperative CVLT Retrieval T scores is normal, the middle 68% of the patients had T scores between what two values?

8. The researchers state that it appears that the functional integrity of the left temporal lobe, despite evidence of structural abnormality, plays a considerable role when it comes to memory outcomes following left ATL. Can the findings from this study be generalized to a larger population? Provide a rationale for your answer.

No, because, according to our source, the sample size is too small to generalize the results for a larger

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