In a Water-Bottling Facility, Several Machines Fill Plastic Bottles with 16

question 36

Multiple Choice

In a water-bottling facility, several machines fill plastic bottles with 16 ounces of drinking water. The following TI-84 Plus display presents the results of a one-way ANOVA to determine whether
The mean fill volumes differ among the filling machines. What is the P-value?

• A) 0.326875
• B) 0.022708
• C) 4.798165
• D) 0.020211

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Definitions:

Internal Validity

The extent to which the design and conduct of a study allow for accurate attribution of outcomes to the intervention or treatment, rather than to confounding variables.

Nonequivalent Control Group Design

A quasi-experimental research design where the experimental group and control group may not be strictly comparable at the outset of the experiment, lacking random assignment.

Selection Differences

Differences in the type of subjects who make up each group in an experimental design; this situation occurs whenparticipants elect which groupthey are to be assigned to.

Independent Variable

In experimental research, the factor that is altered by the scientist to observe how it affects a dependent variable.