Suppose the following table illustrates the ages for a number of participants projected to enroll into...
Suppose the following table illustrates the ages for a number of participants projected to enroll into a clinical trial looking at early onset of dementia.
|
Patient |
Age |
|
A |
64 |
|
B |
59 |
|
C |
58 |
|
D |
55 |
|
E |
72 |
|
F |
54 |
|
G |
66 |
A) Assuming that these participants can be considered to be
normally distributed, and that they come from a population with a
σ=6.01 years, calculate a 99% confidence interval for the mean age
of the population for which they represent. (Example answer
##.##,##.##)
B) With the same assumptions listed above, calculate a 95% confidence interval for the mean age of the population for which they represent. (Example answer ##.##,##.##)
C) With the same assumptions listed above, calculate a 90% confidence interval for the mean age of the population for which they represent. (Example answer ##.##,##.##)
Homework Answers
Solution:
The sample mean of the given data is:
A) The 99% confidence interval for the mean age of the population for which they represent is:
B) The 95% confidence interval for the mean age of the population for which they represent is:
C) The 90% confidence interval for the mean age of the population for which they represent is:
Add Answer to:
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