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  3. a clinical trial was conducted to test the effecti

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

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Verified Solution

Question

Basic Math

A clinical trial was conducted to test the effectiveness of adrug for treating insomnia in older subjects. Before?treatment,

20

subjects had a mean wake time of

101.0

min. After? treatment, the

20

subjects had a mean wake time of

92.4

min and a standard deviation of

21.1

min. Assume that the

20

sample values appear to be from a normally distributedpopulation and construct a

99%

confidence interval estimate of the mean wake time for apopulation with drug treatments. What does the result suggest aboutthe mean wake time of

101.0

min before the? treatment? Does the drug appear to be?effective?

Construct the

99%

confidence interval estimate of the mean wake time for apopulation with the treatment.

_ min < u < min

The confidence interval

?

the mean wake time of

101.0

min before the? treatment, so the means before and after thetreatment

?

This result suggests that the drug treatment

?

a significant effect.

First blank: DOES NOT INCLUDE or INCLUDE

Second blank: ARE DIFFERENT or COULD BE THE SAME

Third Blank: HAS or DOES NOT HAVE

Answer & Explanation Solved by verified expert
3.7 Ratings (373 Votes)
Solution Given thatPoint estimate sample mean 924sample standard deviation s 211sample size n 20Degrees of    See Answer
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