TABLE 1-1 The Manager of the Customer Service Division of a Major

question 78

Multiple Choice

TABLE 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a DVD player made by the company over the past 12 months are satisfied with their products.
-Referring to Table 1-1, the population of interest is

• A) all the customers who have bought a DVD player made by the company over the past 12 months.
• B) all the customers who have bought a DVD player made by the company and brought it in for repair over the past 12 months.
• C) all the customers who have used a DVD player over the past 12 months.
• D) all the customers who have ever bought a DVD player made by the company.

Understand the conditions for using two-tailed tests in mean differences.

Recognize the Student t-distribution's role and calculation of degrees of freedom in hypothesis testing.

Identify independent samples and their significance in statistical testing.

Calculate degree of freedom in pooled-variance t-test for equal and unequal sample sizes.

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Definitions:

Ordinary Care

The reasonable level of care, diligence, and judgment that a person in a particular profession is expected to exercise under specific circumstances.

Internal-Unstable

Attributes in attributing causation for an event or behavior to factors inside a person that can change, such as effort or mood.

External-Stable

An attributional pattern where success or failure is attributed to enduring factors outside an individual's control.

Cognitive Inconsistency

The state of having contradictory thoughts, beliefs, or attitudes, especially relating to behavioral decisions and attitude change.