Exam Details
| Subject | descriptive type | |
| Paper | paper 2 | |
| Exam / Course | ||
| Department | department of statistics and information management (dsim) | |
| Organization | Reserve Bank of India Services Board | |
| Position | regional officer | |
| Exam Date | 2009 | |
| City, State | central government, |
Question Paper
A political scientist wished to examine the relationship of the voter image of a conservative political candidate and distance in miles between the residence of the voter and residence of the candidate. Each of the 12 votes rated the candidates on a scale of 1 to 20. The resulting data are as follows
Voter 1 2 3 4 5 6 7 8 9 10 11 12
Rating 12 7 5 19 17 13 9 18 3 8 15 4
distance 75 165 300 15 180 240 120 60 230 200 130 140
Calculate the Spearman rank correlation coefficient rs
Do the data provide sufficient evidence to indicate a negative correlation between rating
and distance (Critical value of rs α for n
rs (0.05) 0.497 rs (0.05) 0.591).
Voter 1 2 3 4 5 6 7 8 9 10 11 12
Rating 12 7 5 19 17 13 9 18 3 8 15 4
distance 75 165 300 15 180 240 120 60 230 200 130 140
Calculate the Spearman rank correlation coefficient rs
Do the data provide sufficient evidence to indicate a negative correlation between rating
and distance (Critical value of rs α for n
rs (0.05) 0.497 rs (0.05) 0.591).