Group A: 18.7 20.6 20.7 19.7 19.9 19.4 20.2 21.6 18.8 14.1 21.6 16.2 21.7 20.8 19.3 21.3 19.9 20.8 23.2 Group B: 15.2 36.2 27.5 4.7 24.5 29.4 25.9 62.8 Some summary statistics to help you: y s n Group A: Group B: 19.921 2.0457 19 28.275 16.9169 8 Is there a difference in estrogen levels? (Note: d.f. = 7.0864 for Welch's t-test). Use α = 0.05. Make sure you give Ho and H₁ (symbols are okay), and clearly write out your conclusion. 4) Repeat (3), but this time assume equal variances (i.e., use the classic t-test). Use the same level of a you used before. Make sure you give Ho and H₁ (symbols are okay), and clearly write out your conclusion.

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