Instruction 10-12 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 46

Short Answer

Instruction 10-12
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 π₁ and π₂ 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 Instruction 10-12,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:

Account Balances

The amounts of money in a company's financial accounts at a specific point in time.

Unadjusted Trial Balance

A list of all accounts and their balances in a company's ledger before any adjusting entries are made.

Ledger

A book or other collection of financial accounts of a particular type, where transactions are recorded.

Account Balances

The total amount of money in a financial account, determined by adding all credits and subtracting all debits.