A Company Has Tried to Improve the Effectiveness of Its

question 7

Multiple Choice

A company has tried to improve the effectiveness of its dishwashing detergent and wants to see if it works better than the original formula.They use 6 identical new dishwashers and load them identically with dirty dishes.Three packs of each of the two types of detergent are used, and they are randomly assigned to one of the six dishwashers.After the load is run, they rate each load for overall cleanliness.Which of the following is TRUE?

• A)The explanatory variable is the different dishwashers.
• B)The response variable is the type of detergent.
• C)Because each brand is used in three dishwashers, replication is used properly.
• D)A control group with no detergent at all is needed.
• E)Blinding is impossible in this experiment because they must be able to see the dishes.

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Definitions:

Primary Category

The main or first-level classification used in sorting and organizing data, objects, or concepts.

Diversity

The inclusion of individuals with a variety of characteristics, such as race, gender, age, religion, cultural background, and more, within a group or organization.

Marital Status

A legal term used to describe the formal recognition of a person's relationship in society, such as single, married, divorced, or widowed.

Secondary Category

A classification level below the primary category, used to further organize, differentiate, or specify items within a larger grouping or system.