Approximately How Many Research Participants Would Be Required for 80

question 3

Multiple Choice

Approximately how many research participants would be required for 80% power for a study using the t test for dependent means (assume a two-tailed hypothesis with an expected small effect size of .20) :

• A)156
• B)196
• C)26
• D)33

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Definitions:

Series and Shunt

Terms used to describe configurations in electrical circuits; "series" refers to components connected end-to-end, while "shunt" refers to components connected parallel to each other.

Constant Speed Motor

A motor that maintains a uniform speed under varying loads, often achieved through feedback mechanisms or specialized designs.

DC Motor

A type of electric motor that runs on direct current electricity, used in a wide variety of applications from vehicles to industrial machinery.

Shunt Motor

A motor that contains only a shunt field winding.