The 90% Confidence interval is constructed using the formula given below
,
86.9 min < < 106.3 min
The confidence interval contains the mean wake up time 100 min before the treatment, so the mean before and after the treatment could be the same. this result suggests that the drug treatment does not have a significant effect.
THIS 1 possible ial Question Help A cinical trial was conducted to teut the effectivenese the...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 21 subjects had a mean wake time of 100.0 min. After treatment, the 21 subjects had a mean wake time of 77.2 min and a standard deviation of 23.4 min. Assume that the 21 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...
a clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. before treatment 20 subjects had a mean wake time of 100.0 min. after treatment the 20 subjects had a mean wake time of 96.6 min. ans a standard deviation of 22.6 min. assume that the 20 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...
1 UI 23 ('16 Compete) This les 23 pas possible A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 18 subjects had a mean wake time of 104.0 min After treatment, the 18 subjects had a mean wake time of 82.4 min and a standard deviation of 21.3 min. Assume that the 18 sample values appear to be from a normally distributed population and construct a 95% confidence interval...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 21 subjects had a mean wake time of 1000 min After treatment, the 21 subjects had a mean wake time of 77.2 min and a standard deviation of 23.4 min. Assume that the 21 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...
Question Help A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects Before treatment, 23 subjects had a mean wake time of 1050 min Aher treatment, the 23 subjects had a mean wake time of 100 4 min and a standard deviation of 201 min. Assume that the 23 sample values appear to be from a nomaly distributed population and construct a 90% confidence interval estimate of the mean wake time for...
7.2.13-T Question Help A clinical trial was conducted to test the effectiveness of a drug for treating Insomnia in older subjects. Before treatment, 18 subjects had a mean wake time of 1040 min. After treatment, the 18 subjects had a mean wake time of 81.6 min and a standard deviation of 222 min. Assume that the 18 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the mean wake time for...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 24 subjects had a mean wake time of 103.0 min. After treatment, the 24 subjects had a mean wake time of 79.2 min and a standard deviation of 20.2 min. Assume that the 24 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...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 25 subjects had a mean wake time of 103.0 min. After treatment, the 25 subjects had a mean wake time of 82.9 min and a standard deviation of 20.3 min. Assume that the 25 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...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 24 subjects had a mean wake time of 1010 min. After treatment, the 24 subjects had a mean wake time of 77.1 min and a standard deviation of 23.9 min. Assume that the 24 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...
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 105.0 min. After treatment, the 22 subjects had a mean wake time of 95.7 min and a standard deviation of 22.3 min. Assume that the 22 sample values appear to be from a normally distributed population and construct a 99% confidence interval estimate of the mean wake time for a population with...