Significance Test
Used to see if proportion for one sample is statistically significant at a=0.05
One sample z test for p at a=0.05
What is the equation for calculating outliers using IQR?
What is Q1 - (1.5)IQR or Q3 + (1.5)IQR
r2 represents
What is the coefficient of determination?
L stands for
Discrete Values are
What are whole numbers
Used to see if difference in means for two samples is statistically significant at a=0.05
two sample t test for mu1 - mu2 at a=0.05
probability of A given B
P(A and B)/P(B)
a represents
what is the predicted y value when x=0
I stands for
What is Independent?
A cluster sample
What is a sample from some groups
Used to see if the claimed distribution matches the observed distribution
What is chi squared test for goodness of fit
SD of a binomial distribution
(np(1-p))1/2
b represents
What
N stands for
What is Normal?
under-coverage bias is
What is bias caused by having a certain people be more likely to be chosen than others?
Used to see if there is a relationship between two distributions.
Confidence Interval for proportion problems
What is Margin of Error +- Critical Value * Z score?
mu represents
What is the symbol for the average of the population
E stands for
Equal Standard Deviation
Central Limit Theorem
What is the tendency that an average is approximately normal when the sample size is large enough (n>=30)
Used to see if there is a difference in distributions between two samples.
what is chi squared test for homogenity
Probability in geometric distribution.
Sample size for population
What is N?
R stands for
To increase power you need to
What is increase sample size, increase alpha, or decrease proportion.