Inferential Statistics
Estimate
By point and by interval
Proportion
Mean
Variance
Probability distributions
Distribution
used in quality control
Poisson
hypergeometric distribution
geometric distribution
binomial distribution
derived from sampling
Distribution F
Student's t-distribution
Chi-square distribution
Parameters and Statistics
Parameters
Representative and descriptive value of a population as ...
μ: Mean
σ : Standard deviation
Statistics
Actions or functions of the sample data that help characterize the distribution of such data
Hypothesis testing
Key Words
Variance
Compare Processes
Equal variances
Mean
Paired population
Kind of Hypothesis
H0 : Null hypothesis
Ha : Alternative hypothesis
Statistical test
Rejection region
Acceptance region
Rejection criterion
Unilateral (One Tail Test)
Bilateral (Two Tail Test)
Risk of a wrong decision
Error Type I
Error Type II
Population and sample
Population
Finite
Population is small and It is possible to measure all individuals
Infinite
Population is too big and It is impossible or unaffordable to measure all individuals
Sample
Representative Sample
Part of a population that retains the characteristics of this