In a Study of the Factors That Affect Success in Economics,data

question 34

Multiple Choice

In a study of the factors that affect success in economics,data were collected for 8 business students.Scores on a calculus placement test are given with economics final exam scores.The data are below. It can be shown that for these data: 140.75. Calculate the sample correlation coefficient.

• A)0.15
• B)0.11
• C)0.39
• D)-0.39
• E)-0.11

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Definitions:

Direct Material Quantity Variance

The difference between the budgeted amount of materials needed for production and the actual amount used, expressed in cost or quantity.

Standard Price

The predetermined cost that a company expects to pay for materials, labor, and other inputs, used as a benchmark for variance analysis.

Actual Grams

The real-world measurement of weight for materials used in a production or laboratory setting, as opposed to theoretical or estimated amounts.

Labour Efficiency Variance

The difference between the actual labor hours spent on production and the expected (or standard) labor hours, multiplied by the standard labor rate.