Question: Refer to Exercise 11.54. Delete the data value x = 65.0, y = 110.0 from the data set. a. Refit the regression line, and compare
a. Refit the regression line, and compare the slope of the line with and without the data value x = 65.0, y = 110.0 in the set.
b. Compute the two forms of the correlation coefficient, and compare their values.
c. Is the Spearman rank correlation coefficient less or more affected by an extreme value compared to the standard correlation coefficient?
In exercise
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25.0 285 92 30 33L5 319 32.0 330 y 84.9 94.0 5 935 102.9 99.5 1010 0. 99.9 x 335 34.0 35.9 36.0 39.0 39.0 405 409 42.5 y 110.0 100.0 116.0 1100 125.0 119.9 1306 1208 129.9 44.0 4. 5054.6 65.0 70.0 y 135.5 140.0 50.7 1700 1100 185.0 200 a 150- 100- 20 30 40 50 6070 Income
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a The estimated slope changed considerably from 180 to 246 This resulted from excl... View full answer
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