The data in Table 8.4 are a subset of the data obtained by Sylvester (1969) in...

 

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The data in Table 8.4 are a subset of the data obtained by Sylvester (1969) in a study concerned with the anatomical and pathological status of the corticospinal and somatosensory tracts and parietal lobes of patients who had had cerebral palsy. Among other things, he was interested in the relationship between brain weights and large fiber (>7.5 µ in diameter) counts in the medullary pyramid. Table 8.4 gives the mean brain weights (g) and medullary pyramid large fiber counts for 11 cerebral palsy subjects. Table 8.4 Mean Brain Weights and Medullary Pyramid Large Fiber Counts for Cerebral Palsy Subjects Subject number 1 2 3 4 5 6 7 8 9 10 11 Brain weight, g 515 286 469 410 461 436 479 198 389 262 536 Pyramidal large fiber count 32,500 26,800 11,410 14,850 23,640 23,820 29,840 21,830 24,650 22,500 26,000 Source: P. E. Sylvester (1969). (a) Use both Kendall and Spearman correlation tests to test the hypothesis of independence versus the general alternative that brain weight and large fiber count in the medullary pyramid are correlated in subjects who have had cerebral palsy. The data in Table 8.4 are a subset of the data obtained by Sylvester (1969) in a study concerned with the anatomical and pathological status of the corticospinal and somatosensory tracts and parietal lobes of patients who had had cerebral palsy. Among other things, he was interested in the relationship between brain weights and large fiber (>7.5 µ in diameter) counts in the medullary pyramid. Table 8.4 gives the mean brain weights (g) and medullary pyramid large fiber counts for 11 cerebral palsy subjects. Table 8.4 Mean Brain Weights and Medullary Pyramid Large Fiber Counts for Cerebral Palsy Subjects Subject number 1 2 3 4 5 6 7 8 9 10 11 Brain weight, g 515 286 469 410 461 436 479 198 389 262 536 Pyramidal large fiber count 32,500 26,800 11,410 14,850 23,640 23,820 29,840 21,830 24,650 22,500 26,000 Source: P. E. Sylvester (1969). (a) Use both Kendall and Spearman correlation tests to test the hypothesis of independence versus the general alternative that brain weight and large fiber count in the medullary pyramid are correlated in subjects who have had cerebral palsy.

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