A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before trea
Posted: Wed May 11, 2022 10:44 am
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 101.0
min. After treatment, the 18 subjects had a mean wake time of
94.7 min and a standard deviation of 21.1 min. Assume that the 18
sample values appear to be from a normally distributed population
and construct a 95% 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 101.0 min before
the treatment? Does the drug appear to
be effective?
drug for treating insomnia in older subjects.
Before treatment, 18 subjects had a mean wake time of 101.0
min. After treatment, the 18 subjects had a mean wake time of
94.7 min and a standard deviation of 21.1 min. Assume that the 18
sample values appear to be from a normally distributed population
and construct a 95% 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 101.0 min before
the treatment? Does the drug appear to
be effective?