AP Stats – z-Tests, t-Tests, and Intervals
Hypothesis
Model
Mechanics
including drawn model
1 prop.
z-Test
- random
- independent
- 10% condition
- success/failure
1-Proportion
z-Test
- random
- 10% condition
- independent groups
- success/failure
2-Proportion
z-Test
#
2 prop.
proportions
(p and q)
Conclusion
Data
individual
data or
mean & SD
- random
- 10% condition
1 sample
t-Test
#
2 samples
paired
data
paired
t-Test
- nearly Normal
1-Sample
t-Test
(histogram)
- random
- independent groups
- nearly Normal
(two histograms)
- independence
(of the groups)
- 10% condition
- nearly Normal
2-Sample
t-Test
(don’t pool)
Paired
t-Test
Confidence
Interval