Test the claim that the proportion of people who are confident is larger than 60% at the 0.10 significance level. The test statistic is:________ (to 3 decimals) The p-value is:
Test the claim that the proportion of people who are confident is larger than 60% at the 0.10 significance level. The test statistic is:________ (to 3 decimals) The p-value is:
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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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 400 people, 67% of them said they are confident of meeting their goals.
Test the claim that the proportion of people who are confident is larger than 60% at the 0.10 significance level.
The test statistic is:________ (to 3 decimals)
The p-value is: _________ (to 4 decimals)
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