The Following Display from a TI-84 Plus Calculator Presents a 95

question 6

Multiple Choice

The following display from a TI-84 Plus calculator presents a 95% confidence interval for the difference between two proportions. Fill in the blanks: We are 95% confident that the difference between two proportions is between _______ and
_______.

• A) -0.032, 0.028
• B) 0, 1,455
• C) 0.138399, 0.140669
• D) 718, 737

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Definitions:

Margin Account

An account offered by brokerages that allows investors to borrow money to buy securities, with the securities themselves serving as collateral for the loan.

Margin Loan

A loan provided by brokers to investors that allows them to buy securities by borrowing funds, using the purchased securities as collateral.

Maintenance Requirements

The minimum equity amount that must be maintained in a margin account.

Margin Accounts

Brokerage accounts that allow investors to borrow money from the broker to buy securities, subject to maintenance requirements.