Conditions
This makes the randomized condition met
What is the data comes from a random sample or randomized experiment?
The type of variables that Chi-Squared tests are used on
What are Categorical Variables?
A Chi-Squared test used to determine if there is a relation between two categorical variables
What is the Chi-Squared test for independence?
This is the thing to be done before confirming the conditions
What is determining the test to be performed?
The measure of the distance of the observed counts from the expected counts
What is the Chi-Squared Statistic?
Subtracting 1 from the number of categories gets you this value in a Chi-Squared test for GOF
What is degrees of freedom
A Chi-Squared test that determines whether the distribution for several categorical variables accross two or more populations is valid
What is Chi-Squared Test for homogeneity?
The actual counts of occurrences recorded in the sample
What are observed counts?
A Chi-Squared test to determine if a hypothesized distribution for a single categorical variable is valid
What is a Chi-Squared test for goodness of fit?
The number that each expected count should at least be
What is 5?
The theoretical number of occurrences that would be expected if the null hypothesis was true
What are expected counts?
This is the method for calculating degrees of freedom in a Chi Squared test for Homogeneity or Independence
What is (number of rows - 1) multiplied by (number of columns - 1)
The appropriate Chi-Squared test used when determining if preference for a particular social media platform is dependent on age group
What is Chi-Squared test for Independence?
The term for the probability of getting a Chi-Squared statistic as great or more extreme than what has been observed assuming that the null hypothesis is true
What is the p-value?
The appropriate Chi-Squared test to use when determining if the observed dice rolls of a die match the expected outcomes of a fair die
What is the Chi-Squared test for Goodness of Fit?