The Following Data Reflect the Number of Customers Who Test

question 132

Multiple Choice

The following data reflect the number of customers who test drove new cars each day for a sample of 20 days at the Redfield Ford Dealership. Given these data, what is the variance?

• A) 0.69
• B) Approximately 3.08
• C) Approximately 9.52
• D) Approximately 181

Explain how changes in temperature with latitude and season affect ecosystems.

Understand the processes involved in the carbon cycle and the importance of carbon dioxide in ecosystems.

Understand the composition and characteristics of the Earth's atmosphere.

Identify and describe the principal components and processes of the nitrogen cycle.

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Definitions:

Discriminant Validity

A method of demonstrating construct validity by correlating a test with other dissimilar instruments to ensure lack of a relationship.

Intelligence Test

Individual tests that assess a broad range of cognitive capabilities that generally results in an “IQ” score. Often used to identify mental retardation, giftedness, learning disabilities, and general cognitive functioning. It is a type of aptitude test.

Statistical Analysis

Involves mathematical techniques for collecting, reviewing, analyzing, and drawing conclusions from data.

Experimental Design Validity

Using experimentation to show that a test measures a specific concept or construct. It is a type of construct validity.