In: Statistics and Probability
For each problem test the significance the Spearman Rank Correlation Coefficient. Show your calculation of the test statistic rs.
Exercise 2. Income and commute time. The table below shows the median income ($1000s) and commuter times (minutes) for a random sample of 6 different places. At α = 0.05, can you reject the claim that there is no correlation between median income and commuting distance?
City |
Family income |
Commute time |
Woodridge, Illinois |
83 |
27.1 |
Urbandale, Idaho |
82 |
17.0 |
La Palma, California |
86 |
26.9 |
Friendswood, Texas |
90 |
26.0 |
Suwanee, Georgia |
101 |
32.1 |
Somers, Connecticut |
83 |
22.6 |