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

question 63

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 90% 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:

Otolith Organs

Structures in the inner ear that are responsible for detecting linear accelerations and head tilts, thereby contributing to balance and spatial orientation.

Vestibular System

The sensory system responsible for providing our brain with information about motion, head position, and spatial orientation; it also helps with balance.

Histamine

A compound involved in local immune responses, as well as regulating physiological functions in the gut and acting as a neurotransmitter.

Pain Sensation

The uncomfortable feeling often caused by intense or damaging stimuli, interpreted and processed by the nervous system.