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EC315 Chapter 08 Confidence quiz help

# EC315 Chapter 08 Confidence quiz help - Chapter Eight In...

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Chapter Eight In the following multiple choice questions, circle the correct answer. 1. The absolute value of the difference between the point estimate and the population parameter it estimates is the a. standard error b. sampling error c. precision d. error of confidence e. None of the above answers is correct. ANSWER: b 2. The confidence associated with an interval estimate is called the 3. A probability statement about the sampling error is known as the 4. If we want to provide a 95% confidence interval for the mean of a population, the confidence coefficient is 5. As the number of degrees of freedom for a t distribution increases, the difference between the t distribution and the standard normal distribution a. becomes larger 211

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212 Chapter Eight b. becomes smaller c. stays the same d. None of the above answers is correct. ANSWER: b 6. For the interval estimation of μ when σ is known and the sample is large, the proper distribution to use is 7. The variance of a population is known to be 400. At 95% confidence, the margin of error will be 8. An estimate of a population parameter that provides an interval of values believed to contain the value of the parameter is known as the 9. The difference between the point estimate, such as the sample mean, and the value of the population parameter it estimates, such as the population mean, is known as the a. confidence level b. sampling error c. parameter estimate d. interval estimate e. None of the above answers is correct. ANSWER: b
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EC315 Chapter 08 Confidence quiz help - Chapter Eight In...

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