Suppose Apple Would Like to Test the Hypothesis That the Standard

question 21

Multiple Choice

Suppose Apple would like to test the hypothesis that the standard deviation for the web-browsing battery life of the iPad is different from 3.0 hours. The following data represents the battery life, in hours, experienced by a random sample of six users: 10 14 12 16 10 6.
Which of the following would be the correct hypothesis test?

• A) H₀: σ² ≤ 3.0, H_A: σ² > 3.0
• B) H₀: σ = 3.0, H_A: σ ≠ 3.0
• C) H₀: σ² ≥ 9.0, H_A: σ² < 9.0
• D) H₀: σ² = 9.0, H_A: σ² ≠ 9.0

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Definitions:

Mandated Membership

Refers to the requirement for an individual to join a specific group or organization, often as a part of a legal or organizational mandate.

Stable Membership

A characteristic of groups or organizations where the participation or affiliation of its members remains fairly constant over time, contributing to continuity and stability.

Orienting Members

The act of introducing and acclimatizing new participants to the objectives, procedures, and norms of a group.

Group Procedures

Encompasses the methods, rules, and protocols followed by a group to achieve its objectives and manage its operations.