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Mathematics, 24.03.2020 00:23 zay9357

Researchers investigated the effectiveness of oral zinc, as compared to a placebo, in reducing the found those taking oral duration of the common cold when taken within 24 hours of the onset of symptons. The researchers zinc had a statistically significant y shorter duration (P< 0.05) than those taking the placebo, what does this mean?

O The probability that the null hypothesis is true is less than 0.05
The value of the test statistic, the mean reduction in duration of the cold, is large.
Neither of the above is true. eBook

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