A stockbroker at Critical Securities reported that the mean rate of return on a sample of 10 oil stocks was 12.6% with a standard deviation of 3.9%. The mean rate of return on a sample of 8 utility stocks was 10.9% with a standard deviation of 3.5%. At the 0.05 significance level, can we conclude that there is more variation in the oil stocks? How do I compute the p-value? I tried it on excel and got 0.3963 (This is on connect so it will tell you if it correct or incorrect. I rounded and tried not to round too.
A stockbroker at Critical Securities reported that the mean rate of return on a sample of 10 oil stocks was 12.6% with a standard deviation of 3.9%. The mean rate of return on a sample of 8 utility stocks was 10.9% with a standard deviation of 3.5%. At the 0.05 significance level, can we conclude that there is more variation in the oil stocks? How do I compute the p-value? I tried it on excel and got 0.3963 (This is on connect so it will tell you if it correct or incorrect. I rounded and tried not to round too.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A stockbroker at Critical Securities reported that the mean rate of return on a sample of 10 oil stocks was 12.6% with a standard deviation of 3.9%. The mean rate of return on a sample of 8 utility stocks was 10.9% with a standard deviation of 3.5%.
At the 0.05 significance level, can we conclude that there is more variation in the oil stocks?
How do I compute the p-value? I tried it on excel and got 0.3963 (This is on connect so it will tell you if it correct or incorrect. I rounded and tried not to round too.
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