Question: 2. A study was conducted to investigate the effectiveness of hypnotism in reducing pain. Results for randomly selected subjects are shown in the table.

2. A study was conducted to investigate the effectiveness of hypnotism in reducing pain. Results for randomly selected subjects are shown in the table. Test the claim that pain is lower after hypnotism at the 5% significance level. Subject Before After 6.6 6.8 B 6.5 2.4 c 9.0 7.4 D 10.3 8.5 11.3 8.1 8.1 6.1 6.3 3.4 11.6 2.0

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