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)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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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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