For a given N, the interval that bounds the population mean at the 99% confidence level is ____ that which bounds the population mean at the 95% confidence level.
| equal to |
| greater than |
| less than |
| can't be determined without knowing |
With which statistical test do we determine the probability of getting the obtained results or those more extreme assuming the differences in results were due to chance alone?
| sign test |
| z test |
| t test |
| all of the above |
In general, the z test is more powerful than the t test because ____.
| with the z test, the sample mean is closer to the population mean than with the t test |
| with the t test we lose a degree of freedom |
| the standard deviation of the sample raw scores is larger with the t test |
| with the z test, we know s, whereas with the t test, we must estimate it. |
Solution: PSYCH 3204-For a given N, the interval that bounds