A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 22 subjects had a mean wake time of 104.0 min. After treatment, the 22 subjects had a mean wake time of 82.9 min and a standard deviation of 20.7 min. Assume that the 22 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 104.0 min before the treatment? Does the drug appear to be effective? Construct the 90% confidence interval estimate of the mean wake time for a population with the treatment. min<

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Which Decimal Squares best describe the following computations? a. 0.3 + 0.45 = 0.75 b. 0.350 – 0.2 = 0.15 с. 0.3 х 0.4 3D 0.12 d. 10 x 0.14 =1.4 e. 0.45 ÷ 0.15 = 3 f. 0.30 ÷ 10 = 0.03 %3D I. II. III.

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