ll Chapter 9-Key terms ● Unbiased estimator· Confidence level Point estimates Accuracy Interval estimates Degrees of ● Interval limits freedom(df Confidence ° Maximum likely coefficient sampling error o 2002 The Wadsworth GroupChapter 9 - Key Terms • Unbiased estimator • Point estimates • Interval estimates • Interval limits • Confidence coefficient • Confidence level • Accuracy • Degrees of freedom (df) • Maximum likely sampling error © 2002 The Wadsworth Group