A Recent Survey Was Conducted to Compare the Cost of Solar

question 45

Multiple Choice

A recent survey was conducted to compare the cost of solar energy to the cost of gas or electric energy. Results of the survey revealed that the distribution of the amount of the monthly utility bill of a 3-bedroom house using gas or electric energy had a mean of $100 and a standard deviation of $14. Three solar homes reported monthly utility bills of $51, $48, and $56. Which of the following statements is true?

• A) The utility bills for homes using solar power are about the same as those for homes using only gas and electricity.
• B) Homes using solar power may have lower utility bills than homes using only gas and electricity.
• C) Homes using solar power may actually have higher utility bills than homes using only gas and electricity.
• D) Homes using solar power always have lower utility bills than homes using only gas and electricity.

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Definitions:

Recurring Requirements

Ongoing or periodic needs that must be met regularly, such as monthly material orders or annual subscriptions.

Requisition

A formal or official request made within an organization, typically for goods or services.

External Suppliers

Companies or individuals who provide products or services to another company but are not part of that company.

Authorize Buyers

The process of giving approval or permission to purchasers to conduct transactions, often within specific guidelines or limits.