Most People Can Just Detect the Difference Between 5 Spoonfuls

question 158

Multiple Choice

Most people can just detect the difference between 5 spoonfuls of sugar in a gallon of water and 6 spoonfuls of sugar in a gallon of water. If Weber's law holds, these same people should be able to just tell the difference between 25 spoonfuls of sugar in a gallon of water and __________ spoonfuls of sugar in a gallon of water.

• A) 6
• B) 30
• C) 50
• D) 100

---

Definitions:

Reserve Ratio

The fraction of deposits that banks are required to keep on hand as reserves, either in their vaults or with the central bank, to ensure liquidity.

Goldsmith's Receipts

Goldsmith's Receipts were historically issued by goldsmiths in the form of promissory notes against the gold deposited with them, leading to the development of banking.

NOW Accounts

Interest-earning banking accounts that permit writing checks against the deposited funds.

Interest-Bearing

Pertaining to financial instruments or accounts that generate interest income over time for the holder, such as bonds or savings accounts.