Dredges have been classified as suction or mechanical. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger.ĭredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Possible reasons for dredging include improving existing water features reshaping land and water features to alter drainage, navigability, and commercial use constructing dams, dikes, and other controls for streams and shorelines and recovering valuable mineral deposits or marine life having commercial value. You have just fished for data.Wikipedia Rate this definition: 0.0 / 0 votesĭredging is the excavation of material from a water environment. You would like to show progress, so you decide to include them in your report to management.
Your company has no business in Ohio or Louisiana, and it there is no reasonable conclusion why these correlations exist, even though the p-values are less than 5%. Of the 100, two show statistical significance: interest rates on boat loans in south Louisiana and household debt in north Ohio. You download a database from a government website and decide to run a series of automated regressions. Imagine that instead of choosing only four macroeconomic indicators, you chose 100. This could have gone another way…īUT wait! This could have gone another way.
An honest analyst would not make this claim, but show that there is no relationship. You had conflicting evidence of the statistical significance of two correlations, but since one side of the evidence supports a personal claim you would like to make, you decide to accept it. Since you’re in a bind, you decide to claim that GDP and Employment rate have a strong relationship to revenue, and that you’re going to explore this further.
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