What Was the Innovation That Significantly Improved the Quality of Iron

question 73

Multiple Choice

What was the innovation that significantly improved the quality of iron in the eighteenth century?

• A) Bessemer's converter
• B) the French practice of using a double compartment furnace with one compartment for the coke or coal, the other for the iron
• C) the Siemens-Martin open hearth process
• D) the application of steam engines to pump water from mines
• E) the conversion of cast iron into wrought iron

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Definitions:

ANOVA

A statistical method used to compare the means of three or more samples to determine if at least one of the sample means is significantly different from the others.

Assumptions

Premises or statements accepted as true without needing proof, used as the basis for reasoning, discussion, or calculation.

Normally Distributed

Refers to a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Equal Variances

A term referring to situations where different samples or populations have similar or identical variability or spread in their data.