Answer to Question #57389 in Statistics and Probability for Bob

Question

Candidate - Rank by Prof A - Rank by Prof B
1 6 5
2 10 11
3 2 6
4 1 3
5 5 4
6 11 12
7 4 2
8 3 1
9 7 7
10 12 10
11 9 8
12 8 9

What is the Spearman rank-correlation coefficient (rs)?

What is σrs?

What is the value of the test statistic z?

What is the p-value?

Using α = .02 what is your conclusion about how Professor A and Professor B rank the twelve students?