Question
In: Advanced Math
2. A study was conducted of 90 adult male patients following a new treatment for congestive...
2. A study was conducted of 90 adult male patients following a
new treatment for congestive heart failure. One of the variables
measured on the patients was the increase in exercise capacity (in
minutes) over a 4-week treatment period. The previous treatment
regime had produced an av- erage increase of 2 minutes. The
researchers wanted to evaluate whether the new treatment had
increased the value of μ in comparison to the previous treatment.
The data yielded y = 2.35 minutes and s = 1.05.
(a) What type of confidence interval are you going to perform
for this data? Justify your answer.
(b) Calculate and interpret a 99% CI for the true mean
increase in exercise capacity (in min- utes).
(c) Using your interval, does the new treatment increase the
exercise capacity when compared to the mean of the previous
treatment?
Solutions
Expert Solution
SOLUTION:
Given That data A study was conducted of 90 adult male patients following a new treatment for congestive heart failure. One of the variables measured on the patients was the increase in exercise capacity (in minutes) over a 4-week treatment period. The previous treatment regime had produced an av- erage increase of 2 minutes. The researchers wanted to evaluate whether the new treatment had increased the value of μ in comparison to the previous treatment. The data yielded y = 2.35 minutes and s = 1.05.
So
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