In a Maze Learning Study, a Researcher Compares the Performance

question 17

Multiple Choice

In a maze learning study, a researcher compares the performance of laboratory-bred rats and wild rats, hoping to find that the wild rats are better. Which of the following would be a Type II error?

• A)the null hypothesis is rejected when it is in fact true
• B)the wild rats outperform the lab rats in the study
• C)no difference is found in the study, but wild rats are in truth better maze learners
• D)lab rats learn faster in the study, but in truth there is no difference

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Definitions:

Null Hypothesis

A statement used in statistics that proposes there is no significant difference or effect, and any observed difference is due to sampling or experimental error.

Probability

A gauge for predicting the chance that an event will happen, expressed in numbers that fall within 0 and 1.

Power Consumption

The amount of energy consumed by a device or system in a given period.

Standard Deviation

An indicator employed to assess the degree of scatter or diversity among values in a data set.