P-values
Assuming the tests are statistically valid, what is the approximate P-value for a two-tailed t-test if:
- t=−2.14.
- t=1.90.
- t=3.15.
- t=−1.20.
- t=−1.59.
- t=6.71.
(Hint: Use the 68--95--99.7 rule.)
How would your answers change if these t-scores came from a one-tailed test?
Free Online Poll Maker