Confidence interval for a population proportion
Find the lower end point of a 95% confidence interval for a population proportion based on a sample size of 100 if the sample proportion is 0.4. Give your answer to 2 decimal places.
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What is minimum sample size required to estimate a mean within 2 with 95% confidence if the sample standard deviation is 20?
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Find the minimum sample size required to estimate a population proportion to within 0.05 with 95% confidence.
If a fraction of steam is removed from the turbine at 2000kPa, passed through a closed water heater followed by a trap and then returned to the condenser to form a regeneration cycle.
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
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