Question 138295: I need help fast. Thank you.
A certain broakerae huse wants to estimate the mean daily return on a certain stock. A random sample of 17 days yields the following percentateS:
-1.2, -1.84, -2.93, -1.39,, 0.22, -1.64, -1.56, 1.31, 2.77, 2.69, 2.65, 2.98, -0.56, 2,8, -099, 0.39 and 0,14
If we assume that the return are normally distirbued find a 95%confidendce interval for the mean daily return on this stock.
What is the lower limit on the confireence interval
What is the upper limit of the confidence interval.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A certain broakerae huse wants to estimate the mean daily return on a certain stock. A random sample of 17 days yields the following percentateS:
-1.2, -1.84, -2.93, -1.39,, 0.22, -1.64, -1.56, 1.31, 2.77, 2.69, 2.65, 2.98, -0.56, 2,8, -099, 0.39 and 0,14
If we assume that the return are normally distirbued find a 95% confidendce interval for the mean daily return on this stock.
---------------
comment: I assume the -099 in the listing was really -0.99
Since you want a quick answer I threw the data into a calculato to get:
What is the lower limit on the confireence interval: -0.7179
What is the upper limit of the confidence interval: 1.2744
----------
The mean of the data was 0.27829...
E was 0.996106...
=====================
Hope that helps.
Cheers,
Stan H.
|
|
|
