Furnace Repair Bills Are Normally Distributed with a Mean of 267

question 28

Multiple Choice

Furnace repair bills are normally distributed with a mean of 267 dollars and a standard deviation of 20 dollars.If 64 of these repair bills are randomly selected, find the probability that they have a mean cost between 267dollars and 269 dollars.

• A) 0.2881
• B) 0.7881
• C) 0.2119
• D) 0.5517

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Definitions:

Bank Service Charge

Fees charged by banks for handling specific types of transactions, account maintenance, or services rendered.

Note Receivable

A written promise that requires one party to pay a specified sum of money to another party on a set date or on demand.

Depositor's Account

A financial account held at a bank or financial institution, into which a depositor can deposit and withdraw money.

Debit Memorandum

A document issued by a purchaser and sent to a seller indicating the amount and reasons for deductions in the payment or an increase in the purchaser's debt.