Using the Conservative Test in Which Variances Were Not Pooled

question 32

Multiple Choice

Using the conservative test in which variances were not pooled that was described in the text, on how many degrees of freedom would the t test on groups of 65 and 21 participants be based?

• A) 65 - 1 = 64 df
• B) 21 - 1 = 20 df
• C) 65 + 21 - 2 = 84 df
• D) (65 + 21) ÷ 2 = 43 df

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Definitions:

Long-run Total Costs

The total costs incurred by a firm when all inputs are variable and can be adjusted.

Economies of Scale

Cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output generally decreasing with increasing scale as fixed costs are spread out over more units of output.

Long-run Average Total Cost

The average cost per unit of output when all inputs, including capital, are variable, analyzed over a period when all factors of production can be adjusted.

Economies of Scale

The cost advantage that arises with increased output of a product, resulting in a decrease in the per-unit cost as the scale of production is enlarged.