# Shared Flashcard Set

## Details

Chapter 9
Estimation and Confidence Intervals
10
Other
10/24/2011

Term
 Point Estimates
Definition
 A single value (point) derived from a sample and used to estimate a population value
Term
 Confidence Interval
Definition
 A more informative approach is to present a range of values in which we expect the population parameter to occur. Such a range of values is called...
Term
 Point Estimate
Definition
 The statistic, computed from sample information, which is used to estimate the population parameter
Term
 Confidence Interval
Definition
 A range of values constructed from sample data so that the population parameter is likely to occur within that range at a specified probability. The specified probability is called the level of confidence.
Term
 95 percent confidence & 99 percent confidence interval
Definition
 Intervals computed in the standard error fashion are called...
Term
 Proportion
Definition
 the fraction, ratio, or percent indicating the part of the sample or population having a particular trait of interest
Term
 Finite-population correction factor
Definition
 If we are determining the confidence interval for a proportion, then we need to adjust the standard error of the proportion in formula. This adjustment is called...
Term
 Choosing an Appropriate Sample Size
Definition
 Use a comparable study
Term
 Choosing an Appropriate Sample Size
Definition
 Use a range-based approach
Term
 Choosing an Appropriate Sample Size
Definition
 Conduct a pilot study
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