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A well-known brokerage firm executive claimed that 10% 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 300 people, 15% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is larger than 10% at the 0.01 significance level. The null and alternative hypothesis would be: H0:p≤0.1 H1:p>0.1 What is the test statistic? (to three decimal places) What is the p-value? (to four decimal places)

A well-known brokerage firm executive claimed that 10% 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 300 people, 15% of them said they are confident of meeting their goals. Test the claim that the proportion of people who are confident is larger than 10% at the 0.01 significance level. The null and alternative hypothesis would be: H0:p≤0.1 H1:p>0.1 What is the test statistic? (to three decimal places) What is the p-value? (to four decimal places)

MATLAB: An Introduction with Applications
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 10% 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 300 people, 15% of them said they are confident of meeting their goals.

Test the claim that the proportion of people who are confident is larger than 10% at the 0.01 significance level.

The null and alternative hypothesis would be:

H0:p≤0.1
H1:p>0.1

What is the test statistic? (to three decimal places)

What is the p-value? (to four decimal places)

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