A newspaper asks two of its staff to review the coffee quality at different trendy cafés. The coffee can be rated on a scale from 1 (miserable) to 10 (excellent). The results of the two coffee enthusiasts X and Y are as follows: Cafe xi yi 136 287 37 10 498 554 (a) Calculate and interpret Spearman's rank correlation coefficient. (b) Does Spearman's correlation differ depending on whether ranks are assigned in a decreasing or increasing order? (c) Suppose the coffee can only be rated as either good (-5) or bad (s5). Do the chances of a good rating differ between the two journalists?

A newspaper asks two of its staff to review the coffee quality at different trendy cafés. The coffee can be rated on a scale from 1 (miserable) to 10 (excellent). The results of the two coffee enthusiasts X and Y are as follows: Cafe xi yi 136 287 37 10 498 554 (a) Calculate and interpret Spearman's rank correlation coefficient. (b) Does Spearman's correlation differ depending on whether ranks are assigned in a decreasing or increasing order? (c) Suppose the coffee can only be rated as either good (-5) or bad (s5). Do the chances of a good rating differ between the two journalists?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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