Light Bulbs Are Measured in Lumens (Light Output), Watts (Energy

question 128

Multiple Choice

Light bulbs are measured in lumens (light output) , watts (energy used) , and hours (life) .A standard white light bulb has a mean life of 675 hours and a standard deviation of 50 hours.A soft white light bulb has a mean life of 700 hours and a standard deviation of 35 hours.At a local science competition, both light bulbs lasted 750 hours.Which light bulb's life span was better?

• A)The soft white light bulb because it is 7% beyond the mean.
• B)The standard white light bulb because it is 75 hours beyond the mean.
• C)The standard white light bulb because it is 11% beyond the mean.
• D)The standard light bulb because it lasted 1.5 standard deviations above the mean life.
• E)The soft white light bulb because it is 50 hours beyond the mean.

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Definitions:

Perfect Tender Rule

A principle in sales law allowing buyers to reject goods if they do not exactly meet the terms of the contract.

Nonconforming Goods

Goods that fail to meet the specifications, quality, or quantity as outlined in a contract.

Installment Contract

A contract that allows for payment or delivery of goods in portions at specified intervals over a period rather than in a single lump sum.

Apportioned

Divided and distributed in proportions or specific amounts according to a defined scheme or calculation.