Data Analysis Flashcards
(15 cards)
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
