SCENARIO 10-10
a Corporation Randomly Selects 150 Salespeople and Finds $\pi$

question 155

Short Answer

SCENARIO 10-10
A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self- improvement course would like such a course.The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course.The groups are assumed to be independent random samples.Let $\pi$ ₁ and $\pi$ ₂ represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study,respectively.
-Referring to Scenario 10-10,construct a 99% confidence interval estimate of the difference in proportion of workers who would like to attend a self-improvement course in the recent study and the past study.

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Definitions:

Frequencies

In physics, the number of occurrences of a repeating event per unit of time, often measured in hertz (Hz) in the context of waves or vibrations.

100,000 Hz

A frequency unit representing 100,000 cycles per second in the electromagnetic spectrum, typically associated with high-frequency sounds beyond human hearing.

Opponent-Process Theory

A psychological and neurological model explaining how the perception of one stimulus (e.g., color) can affect the perception of another, leading to contrasting effects.

Color Pairings

The practice of combining colors based on their harmony and contrast to achieve a particular aesthetic or functional effect, often used in design and art.