Chapter 8 Flashcards
1
Q
point estimator
A
a statistic that provides an estimate of a population parameter
2
Q
point estimate
A
value of that statistic from a sample
3
Q
confidence interval
A
provides an interval of plausible values for a parameter based on sample data
4
Q
plausible
A
no surprise if a value in the interval is equal to the value of a parameter
5
Q
confidence level (C)
A
overall success rate of the method used to calculate the confidence interval
6
Q
margin of error
A
how far - at most - we expect the estimate to vary from the true population value
7
Q
critical value
A
a multiplier that makes the interval wide enough to have the stated capture rate
8
Q
standard error
A
when the standard deviation of a statistic is estimated from data
