Fourteen of 180 publicly traded business services companies failed a test for compliance with Sarbanes-Oxley requirements for financial records and fraud protection.
Assuming that these are a random sample of all publicly traded companies, construct a 95 percent confidence interval for the overall noncompliance proportion.
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The 95% confidence interval
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to
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In 1,000 samples, assuming that H0 is true, how many times would you expect to commit Type I error if:
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Type I Error
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(a) α = .05
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(b) α = .01
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(c) α = .001
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