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What Kind of Drafters Prepare CADD Models and Drawings Used

question 11

Essay

What kind of drafters prepare CADD models and drawings used in construction or civil engineering projects such as highways, bridges, pipelines, flood-control projects, and wa- ter and sewage systems?


Definitions:

Sample Variance

A statistical measure of the dispersion of observations in a sample dataset around the sample mean.

T Distribution

A family of probability distributions that can be used to develop an interval estimate of a population mean whenever the population standard deviation s is unknown and is estimated by the sample standard deviation s.

Variance

A measure of the spread between numbers in a data set, indicating how much the numbers differ from the mean.

Independent Samples

Samples drawn from different populations without any pairing or matching between the samples.

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