6.1 Confidence Intervals for the Mean Flashcards
1
Q
Point Estimate
A
Single value estimate for a population parameter
2
Q
Interval Estimate
A
Range of values used to estimate a population parameter
3
Q
Level of Confidence
A
Probability that the interval estimate contain the population parameter
4
Q
Zc
A
1/2 (1-c)
5
Q
c Level of Confidence
A
The area under the standard normal curve between Critical Values
6
Q
Sampling Error
A
x̅ - μ
7
Q
Margin of Error
A
Zc (σ /√n)
8
Q
Confidence Intervals for Population Mean
A
x̅-E < μ < x̅+E
9
Q
Minimum Sample Size
A
((Zc*σ)/E)^2
