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Question
| Paired Samples Test | ||||||||
| Paired Differences | t | df | Sig. (2-tailed) | |||||
| Mean | Std. Deviation | Std. Error Mean | 95% Confidence Interval of the Difference | |||||
| Lower | Upper | |||||||
| ELEVATED - LEVEL | .0190 | .1371 | 4.3E-02 | -.0791 | .1171 | .438 | 9 | .672 |
a) the difference between the pre- and post-test sample means is between -.0791 and .1171.
b) the population mean must be at least =.0791.
c) an interval computed in this way has a probability of .95 of encompassing the difference in population means.
d) the population mean has a probability of .95 of lying between -.0791 and .1171.
Answer
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