STA 2023 Study Guide - Quiz Guide: Confidence Interval, Point Estimation, Standard Deviation
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True/ false: interval estimates are preferred over point estimates since a confidence level can be specified. True: for a specific confidence level, the larger the sample size, and the smaller the margin of error will be. True: an estimator is consistent if a sample size decreases, those values of the estimator approaches the values of the parameter estimated. False: to determine the sample size needed to estimate a parameter, you must know the margin of error. Fill-in-the-blank: a good estimator should be_________, ______________, and ________________. Unbaised, consistent, relatively estimate: the maximum likely difference between the point estimate of a parameter and the actual value of parameter is called__________________. Margin of error: the statement (cid:498)the average height of an adult male is (cid:887) feet and (cid:883)(cid:882) inches(cid:499) is an example of a(n) _____________ estimate. point, the three confidence levels used most often are the ____________%, 90,95,99: an irate student complained that the cost of textbooks was too high.
