A well-known brokerage firm executive claimed that 20% 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 100 people, 21% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is larger than 20% at the 0.10 significance level. The null and alternative hypothesis would be:
A well-known brokerage firm executive claimed that 20% 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 100 people, 21% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is larger than 20% at the 0.10 significance level. The null and alternative hypothesis would be:
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A well-known brokerage firm executive claimed that 20% 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 100 people, 21% of them said they are confident of meeting their goals.
Test the claim that the proportion of people who are confident is larger than 20% at the 0.10 significance level.
The null and alternative hypothesis would be:
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