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2.  Identify three entity-wide controls that can be put into place to establish a strong control environment.  Explain how each of these controls can prevent and/or detect fraud & error. 

2. Why is it often hard to measure every item in a population?

17. Which statement best describes a confidence interval?

19. Which situation describes a proportion rather than a mean?

16. Using a sample to make guesses about a larger group is called:

14. A poll reports that a political candidate has 40% support with a margin of error of 3% at a 95% confidence level. What does this mean?

4. Why do sums of many values become more predictable?

9. A scientist studies a population where individual measurements are very uneven and not bell-shaped. He still uses sample averages to estimate the population mean. Why is this reasonable?

7. What mistake was made in the SIDS court cases?

16. A blood test has a mean of 122 and a standard deviation of 18. Which result would be considered the most unusual?