Travelocity Would Like to Test If the Average Roundtrip Airfare

question 115

Multiple Choice

Travelocity would like to test if the average roundtrip airfare between New York and London is less than $1,400. A Type I error would occur if Travelocity concludes that the average airfare is __________________________________________.

• A)$1,400 or more when, in reality, the average airfare is less than $1,400
• B)less than $1,400 when, in reality, the average airfare is $1,400 or more
• C)not equal to $1,400 when, in reality, the average airfare is equal to $1,400
• D)equal to $1,400 when, in reality, the average airfare is not equal $1,400 or more

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Definitions:

Variance

A statistical measure that indicates the spread of a dataset or the distribution of data points.

Dependent Variables

Variables in experimental research that are affected by manipulations of the independent variable, observed to understand the effects of the intervention.

Construct

An abstract concept that is specifically chosen or created for scientific inquiry to explain behaviors or phenomena.

Independent Variable

The variable in a study that is manipulated or changed by the researcher to investigate its effect on another variable (the dependent variable).