A Weatherproof Enclosure Designed to Give Protection from Falling Dirt

question 46

Multiple Choice

A weatherproof enclosure designed to give protection from falling dirt, rain, snow, sleet, and windblown dust is classified as a _____ enclosure and will need to be installed for outside applications.

• A) NEMA 1
• B) NEMA 2
• C) NEMA 3R
• D) NEMA 12

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Definitions:

Pearson Correlation

Another name for Pearson r, indicating the degree of linear relationship between two variables.

Null Hypothesis

A statement or hypothesis that suggests there is no statistical significance between the specified sets of observations.

Sample Size

The number of observations or replicates included in a statistical sample.

P Value

The probability of obtaining test results at least as extreme as the results observed, assuming the null hypothesis is true.