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You wish to determine if there is a negative linear correlationbetween the age of a driver andthe number of driver deaths. The following table represents
You wish to determine if there is a negative linear correlationbetween the age of a driver andthe number of driver deaths. The following table represents the age of a driver and the number of driver deaths per 100,000. Use a significance level of 0.05 and round all values to 4 decimal places.
Driver Age | Number of Driver Deaths per 100,000 |
---|---|
72 | 27 |
20 | 31 |
39 | 21 |
80 | 35 |
21 | 20 |
21 | 34 |
Ho: = 0 Ha: < 0
Find the Linear Correlation Coefficient r =
Find the p-value p-value =
The p-value is
- Less than (or equal to)
- Greater than
The p-value leads to a decision to
- Accept Ho
- Do Not Reject Ho
- Reject Ho
The conclusion is
- There is a significant linear correlation between driver age and number of driver deaths.
- There is a significant negative linear correlation between driver age and number of driver deaths.
- There is insufficient evidence to make a conclusion about the linear correlation between driver age and number of driver deaths.
- There is a significant positive linear correlation between driver age and number of driver deaths.
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