A well-known brokerage firm executive claimed that 60% of investors are currently confident of meeting their investment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sample of 200 people, 59% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is smaller than 60% at the .02 significance level. The sample proportion ˆp=p^= 1.)The test statistic is: (to 2 decimals) 2.)The p-value is: (to 4 decimals) 3.) Based on this we: a.)Reject the null hypothesis b.)Fail to reject the null hypothesis
A well-known brokerage firm executive claimed that 60% of investors are currently confident of meeting their investment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sample of 200 people, 59% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is smaller than 60% at the .02 significance level. The sample proportion ˆp=p^= 1.)The test statistic is: (to 2 decimals) 2.)The p-value is: (to 4 decimals) 3.) Based on this we: a.)Reject the null hypothesis b.)Fail to reject the null hypothesis
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 well-known brokerage firm executive claimed that 60% of investors are currently confident of meeting their investment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sample of 200 people, 59% of them said they are confident of meeting their goals.
Test the claim that the proportion of people who are confident is smaller than 60% at the .02 significance level.
The sample proportion ˆp=p^=
1.)The test statistic is: (to 2 decimals)
2.)The p-value is: (to 4 decimals)
3.) Based on this we:
- a.)Reject the null hypothesis
- b.)Fail to reject the null hypothesis
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