Question

The computed chi-square value is positive because the difference between the observed and expected frequencies is _____________. Select one: a. Squared b. Linear c. Uniform d. Always positive

Answer 1

The computed chi-square value is positive because the difference between the observed and expected frequencies is squared.

The formula for chi-square is the sum for all values of (observed - expected)^2 / expected.

Hope this helps!! :)

Answer 2

A chi-square ($\bold{X^2}$) statistics computes the variation seen between observed and predicted rates of the results of a sequence of circumstances or variables.

• This test is important for measuring such variations in categorical data, particularly nominal factors.
• Since the numerator is indeed the difference between the observed and predicted frequency squared, the computed value of the chi-square statistics has always been positive.

Therefore, the final answer is "Option a".

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