Which of the Following Increases the Hazard of Cave-Ins

question 27

Multiple Choice

Which of the following increases the hazard of cave-ins?

• A)rain
• B)vibration from street traffic
• C)freezing/thawing of soil
• D)all of the above
• E)none of the above

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Definitions:

Alternative Hypothesis

It proposes that there is a statistically significant relationship between variables, opposing the null hypothesis.

Mean Difference

The average difference between each pair of observations in two sets of values, often used in comparative studies.

Null Hypothesis

In statistics, it's the hypothesis that there is no effect or no difference, and it is tested against an alternative hypothesis.

Mean Difference

The average difference between two sets of numbers or measurements, often used to compare the means from two samples.