A Student Received a Score of 85 on a Classroom

question 137

Multiple Choice

A student received a score of 85 on a classroom test where the mean was 70 and the standard deviation was 10.The test was found to have a reliability coefficient of .64.Which of the following statements would correctly express the accuracy of the student's obtained score? There are

• A) 50 chances out of 100 that the true score is included by the range of scores from 72 to 78.
• B) 68 chances out of 100 that the true score is included by the range of scores from 75 to 95.
• C) 68 chances out of 100 that the true score is included by the range of scores from 79 to 91.
• D) 75 chances out of 100 that the true score is included by the range of scores from 79 to 91.
• E) 95 chances out of 100 that the true score is included by the range of scores from 79 to 91.

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Definitions:

Weighted-Average Method

A costing method that averages the costs of all units, both in progress and completed, over the period to determine the cost per unit.

Forming Department

A division within a manufacturing process where raw materials begin their transformation into finished products, typically through shaping or molding.

Materials Cost

The total expense of materials used in the production of a product, including direct materials and any additional materials necessary for production.

Conversion Costs

The combined costs of direct labor and manufacturing overheads incurred to convert raw materials into finished goods.