Question 216091: Use the given degree of confidence and sample data to construct a confidence interval for the population mean u, assume that the population has a normal distribution.
N=10,x=14.6, s=2.6, 95 percent
I know the answer is 12.47
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Use the given degree of confidence and sample data to construct a confidence interval for the population mean u, assume that the population has a normal distribution.
N=10,x=14.6, s=2.6, 95 percent
---------------------------------------
I assume your "x" is really x-bar, which is the sample mean.
---------------------------------
x-bar = 14.6
standard error = 2.2622*2.6/sqrt(10) = 1.86
---
95% CI: 14.6-1.86 < U < 14.6+1.86
95% CI: 12.74 < u < 3.72
================================
Cheers,
Stan H.
|
|
|
