The estimate of how much the results of a given sample might differ from the "true" population is called the ______
Fill in the blank(s) with correct word
margin of error
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If aluminum power wire is used, to make a safe connection the installer should make sure:
A) That the furnace power connectors are rated for aluminum wire. B) To first spray the lugs with insulating spray. C) To use an aluminum-tipped screwdriver to tighten the lugs. D) The aluminum wire is one size smaller than a comparable copper wire.
Dark box design is similar to thevenizing an unknown analog output voltage. The black box represents:
A) a system of unknowns with a known output. B) unknown systems inside the box and unknown outputs outside the box. C) a system of known values cloaked because the details are unimportant. D) one system in a group of systems.
Unlike magnetic poles ________ and like poles ________
A) attract, repel B) repel, repel C) repel, attract D) attract, attract
A step change is a(n) ____________________ in the motor rotation due to an advancement in the flux field.
Fill in the blank(s) with the appropriate word(s).