The scatterplot below shows the relationship between the percentage of the population of a state (Washington, DC included) that has at least a bachelor’s degree and the median income (in dollars) of the state for 2009. Use the scatter plot to answer the questions that follow. a. Describe the correlation between the percentage of the population with at least a bachelor’s degree and the median income, being sure to specifically note the strength
The scatterplot below shows the relationship between the percentage of the population of a state (Washington, DC included) that has at least a bachelor’s degree and the
a. Describe the
b. One observation seems to stick out from the rest. Circle it on the scatterplot. This particular observation is for Washington, DC. Can you think of any reasons why Washington, DC might have a high percentage of residents with a bachelor’s degree, but a lower than expected median income?
c. The
| n | a=0.05 | a=0.01 |
| 4 | 0.950 | 0.990 |
| 5 | 0.878 | 0.959 |
| 6 | 0.811 | 0.917 |
| 7 | 0.754 | 0.875 |
| 8 | 0.707 | 0.834 |
| 9 | 0.666 | 0.798 |
| 10 | 0.632 | 0.765 |
| 47 | 0.288 | 0.372 |
| 52 | 0.273 | 0.354 |
| 62 | 0.250 | 0.325 |
| 72 | 0.232 | 0.302 |
| 82 | 0.217 | 0.283 |
| 92 | 0.205 | 0.267 |
| 102 | 0.195 | 0.254 |
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