Data Analysis Flashcards
Data variables may be represented in categories, as …. or ….
categorical, numerical
Categorical data may be …. or ….
nominal, ordinal
Numerical data may be … or …
interval, ratio
Numerical data with a “true” zero is … data
ratio
Categorical data with a relative “rank” order is … data
ordinal
~nominal data has no set order “Red”, “Blue”, “Green” etc.
Accuracy of data is how close a measurement is to its … value.
true
Precision of data is how … measurements are.
repeatable
Increasing sample size helps to reduce sampling …
error
Frequentist concepts assume a … Hypothesis
Null
A permutation test randomly assigns … to numerical data
Categories
Alternative hypothesis is the statement of the … Effect
Expected
One sample t test assumes … Distribution
Normal
One sample t test requires … Or … Data
Interval, ratio
One sample t test assumes data is ..
Independent
Negative t values can be wrote as …
Positive
