Which of the Following Situations Could Cause Bias in the Results

question 39

Multiple Choice

Which of the following situations could cause bias in the results of a telephone survey?

• A)A phone number in the sample was found to be 'not in service' or 'disconnected'.
• B)The person who answered the phone refused to participate.
• C)There was no answer, so the interviewer gave up and called someone else.
• D)Each of the above would cause bias in the results.

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Definitions:

Shift

A change in demand or supply where the entire curve moves either right (increase) or left (decrease), signifying changes in market conditions.

Supply Curve

A visual chart demonstrating the link between a product's price and the amount producers are willing to supply.

Movement

In economics, this can refer to changes in market conditions, such as price movements, or the migration of people or capital between regions or sectors.

Excess Supply

A situation where the quantity of a product offered for sale exceeds the quantity demanded at the current price, often leading to a decrease in price.