A 90% Confidence Interval for the Average Salary of All

question 118

Multiple Choice

A 90% confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a random survey of 45 CEOs. The interval was ($110,389, $128,192) .
Give a practical interpretation of the interval.

• A) We are 90% confident that the mean salary of all CEOs in the electronics industry falls in the interval $110,389 to $128,192.
• B) 90% of all CEOs in the electronics industry have salaries that fall between $110,389 to $128,192.
• C) 90% of the sampled CEOs have salaries that fell in the interval $110,389 to $128,192.
• D) We are 90% confident that the mean salary of the sampled CEOs falls in the interval $110,389 to $128,192.

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Definitions:

Whistle-Blowers

Individuals who expose illegal, unethical, or corrupt practices within an organization, often facing significant personal risk.

Low-Level Officials

Officials in the government who hold positions of lesser authority, often responsible for overseeing daily administrative tasks.

Improper Activities

Actions or behaviors that are unethical, illegal, or do not comply with set standards or rules.

Adversarial Journalism

A style of journalism that involves investigative reporting aimed at uncovering the truth, often through confrontational methods with those in power.