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If your experiment, you compared the scores of a set of 15 individuals before and after taking a drug. Your obtained statistic is = 1.58

If your experiment, you compared the scores of a set of 15 individuals before and after taking a drug. Your obtained statistic is = 1.58 You're interested in finding a statistically significant difference. Alpha level is 0.05. What is the critical value?

+/-1.96

+/-2.145

+/-1.761

+/-1.734

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