What Happens at an Oil Refinery

question 28

Multiple Choice

What happens at an oil refinery?

• A)Oil is separated into its component compounds. surveying.
• B)Oil is heated to high temperatures to evaporate off harmful impurities such as radon.
• C)Oil is made more viscous by evaporating off most of the water.
• D)Oil is microfiltered to remove small dirt and rock particles.
• E)Oil is turned into a cleaner -burning material called synfuel.

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Definitions:

Chi-Squared Distribution

A statistical distribution employed in hypothesis testing that is known for its utility in evaluating the goodness-of-fit between observed and expected data.

Sample Sizes

Refers to the number of observations or elements chosen from a population to form a sample for a statistical study.

Kruskal-Wallis Test

A non-parametric test used to determine if there are statistically significant differences between two or more groups of an independent variable on a continuous or ordinal dependent variable.

Kruskal-Wallis Test

An approach that is not based on parameter-specific criteria to determine if samples are from the same distribution.