Chi-Square
A distribution used to study variation across samples in categorical data analysis
What is Chi-Square Distribution
n
What is sample size
Samples are chosen from a population either by using a random number table or a random number generator. Each member of the population has an equal, independent, and known chance of being selected
What is random sample
What is Minimum
This is when a sample is taken from individuals that are conveniently available
What is convenience sampling
A test statistic that measures divergence from expected frequencies across categorical data.
What is Chi-Square Statistic
X̄
Sample mean
A sampling technique that divides a population into separate groups called clusters and then randomly selects some clusters to sample
What is Cluster Sample
Median of the first half of the data
What is Q1
When survey/experiment responses are inaccurate due to non-candid reporting.
What is Response Bias
A statistical test applied to contingency tables to determine if two categorical variables are related or independent
What is Chi-Square Test for Association/Independence
μ
What is population mean
The researcher chooses a sample that is readily available in some non-random way
What is Convenience Sampling
This is the median of the data
What is Q2
This occurs when individuals can choose to participate or not
What is voluntary response bias
A statistical test applied to categorical data to determine if an observed frequency distribution matches an expected theoretical distribution.
What is Chi-Square GOF Test
σ
Population standard deviation
A method of sampling that involves the division of a population into smaller subgroups known as strata
What is Stratified Random Sampling
What is Q3
What is non-response bias
A statistical test applied to categorized contingency tables to determine if groups have identical distribution across categorical variables.
What is Chi-Square Test for Homogeneity
p
Population proportion
A type of probability sampling method in which sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval
What is Systematic Sampling
This is the largest number in the data set
What is maximum
When a sample is taken that gives part of the population less representation
What is undercoverage