If the Machine Being Used for the Weld Does Not

question 37

Multiple Choice

If the machine being used for the weld does not have an amp meter, a meter must be attached to the welding lead, within ____ ft. of the electrode holder, to get the reading of the amount of current in amps used to make the weld.

• A) one
• B) two
• C) three
• D) four

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Definitions:

F-Ratio

The ratio used in analysis of variance (ANOVA) to compare the variance between groups to the variance within groups.

Main Effect

The main effect is the impact of an independent variable on a dependent variable in a statistical model, ignoring other variables' influences.

Factor A

Factor A is often used in experimental design to represent one of the independent variables being tested for its effect on a dependent variable.

Reject

In statistical analysis, to refuse to accept a null hypothesis, based on the outcome of a test showing that observed data is unlikely under the hypothesis.