An exploratory statistical procedure used to identify groupings of variables correlating maximally with each other and minimally with variables in the other groupings is __________.
Fill in the blanks with correct word
Question 2
In an analysis of variance, if the within-groups variance estimate is about the same as the between-groups variance estimate, then
A) the null hypothesis should be rejected.
B) any difference between sample means is probably due to random sampling error.
C) an error has been made in computing the between-groups and the within-groups variance estimates.
D) any difference between sample means is probably due to a real difference caused by experimental conditions.
Pulmonary function test: spirometry. (a) Normal respiratory volumes, as measured during spirometry.
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Identify the variable representing each described quantity in the equation