Question: 10. (a) Compare the widths of the intervals obtained in Problems 9a9c. What generalization concerning the sampling variation of the correlation coefficient is suggested by

10.

(a) Compare the widths of the intervals obtained in Problems 9a–9c. What generalization concerning the sampling variation of the correlation coefficient is suggested by this comparison?

(b) Now compare the widths of the intervals obtained in Problems 9c–9e. What is the corresponding generalization concerning the sampling variation of the correlation coefficient?

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