(All Steps) In an independent-group design, we find: Group 1 Group 2 n1 = 18 n2 = 14 s 1 2 = 16 s 2 2 = 20 Ybar 1 = 30.1 Ybar 2 = 27.7 Find the 95% confidence
Question: In an independent-group design, we find:
| Group 1 | Group 2 |
| n1 = 18 | n2 = 14 |
| s 1 2 = 16 | s 2 2 = 20 |
| Ybar 1 = 30.1 | Ybar 2 = 27.7 |
- Find the 95% confidence interval for \({{\mu }_{1}}-{{\mu }_{2}}\). Assuming we wish to test \({{H}_{0}}:{{\mu }_{1}}={{\mu }_{2}}\) against the two-tailed alternative, what can we conclude?
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