A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia in older subjects.

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A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia in older subjects. before treatment with zopiclone, 16 subjects had a mean wake time of 102.8 minutes. after treatment with zopiclone, the 16 subjects had a mean wale time of 98.9 minutes and a standard deviation of 42.3 minutes. assume that the 16 sample values appear to be from a normally distributed population in the claim is that after the treatment with zopicloje, subjects have a mean wake time of less than 102.8 minutes. find the p-value in four decimal places.