An Electrical Engineer Wants to Compare the Resistance of Four

question 22

Multiple Choice

An electrical engineer wants to compare the resistance of four types of wire made from different materials.Five wires of equal lengths and cross sectional areas are prepared for each of the four wire types.Each section of wire is randomly tested by sending a current through the wire and measuring the resistance.How many degrees of freedom does the treatment sum of squares have? How about the error sum of squares?

• A)df-treatment = 4; df-error = 19
• B)df-treatment = 3; df-error = 17
• C)df-treatment = 3; df-error = 16
• D)df-treatment = 4; df-error = 20
• E)df-treatment = 3; df-error = 19

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Definitions:

Reality Principle

A psychoanalytic concept that refers to the ability of the mind to assess the external world and act upon it accordingly, rather than purely on the basis of the pleasure principle.

Instinctual Needs

Fundamental, innate drives or motivations necessary for survival, such as hunger or reproduction.

Pleasure Principle

The driving force of the id that seeks immediate gratification of all desires, wants, and needs.

Forbidden Impulse

Refers to an unconscious desire or thought that is deemed unacceptable or taboo by societal standards, often suppressed or repressed.