The probability distribution used when comparing two population variances is

		a chi-square (or 2) distribution
		a t distribution
		a normal distribution
		an F distribution

2.

For an F distribution, the number of degrees of freedom for the numerator (df1)

		must be equal to the number of degrees of freedom for the denominator
		can be larger, smaller, or equal to the number of degrees of freedom for the denominator
		must be smaller than the number of degrees of freedom for the denominator
		must be larger than the number of degrees for the denominator

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