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 800 people, 18% 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: Ho: µ < 0.1 Ho:p = 0.1 Ho:p > 0.1 Ho:µ > 0.1 Ho:u = 0.1 Ho:p < 0.1 H1: µ > 0.1 H1:p+ 0.1 H1:p < 0.1 H1: µ < 0.1 H1:µ # 0.1 H1:p > 0.1
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 800 people, 18% 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: Ho: µ < 0.1 Ho:p = 0.1 Ho:p > 0.1 Ho:µ > 0.1 Ho:u = 0.1 Ho:p < 0.1 H1: µ > 0.1 H1:p+ 0.1 H1:p < 0.1 H1: µ < 0.1 H1:µ # 0.1 H1:p > 0.1
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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