Which Was NOT a New Feature in the Development of Nineteenth-Century

question 24

Multiple Choice

Which was NOT a new feature in the development of nineteenth-century skyscrapers?

• A)masonry and brick construction
• B)power-driven elevators
• C)steel frames
• D)concrete reinforced with steel wire

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Definitions:

Variance

A measure of how much values in a data set differ from the mean of the data set.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or relationship exists between certain characteristics or variables.

One-way ANOVA

A statistical test that compares the means of three or more independent groups using variance analysis.