The Sample Correlation Coefficient Between X and Y Is 0

question 18

Multiple Choice

The sample correlation coefficient between X and Y is 0.375. It has been found out that the p-value is 0.256 when testing H₀ : ? = 0 against the two-sided alternative H₀ :? ? 0. To test H₀ : ? = 0 against the one-sided alternative H₀ : ? < 0 at a significance level of 0.2, the p-value is

• A) 1 - 0.256/2.
• B) (0.256)2.
• C) 1 - 0.256.
• D) 0.256/2.

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Definitions:

Fixed Costs

Business expenses that remain constant regardless of the level of production or sales.

Marginal Cost

The change in the total expense associated with the production of an extra unit of a product, whether it be an increase or decrease.

Average Total Cost

The total cost of production divided by the number of goods produced, representing the average cost per unit of output.

Average Total Cost

The total cost of production (fixed plus variable costs) divided by the number of units produced, representing the per-unit production cost.