Ten Visitors to an Art Gallery Are Asked to Rate

question 12

Multiple Choice

Ten visitors to an art gallery are asked to rate a Van Gogh painting alongside a sculpture each by Henry Moore and Michelangelo. What test would be used to see if there is a significant difference in ratings amongst the three pieces?

• A) Mann-Whitney test
• B) Signed-rank test
• C) Friedman test
• D) Kruskal-Wallis test

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Definitions:

Atmosphere

The layer of gases surrounding a planet or moon, held in place by gravity, essential for life on Earth.

Phosphorus

A chemical element that plays a vital role in biological processes such as energy transfer, genetic information processing, and bone formation.

Phosphorus

A reactive, nonmetallic chemical element with the symbol P, essential for life, playing a key role in cellular energy transfer and nucleic acid synthesis.

Sedimentary Rock

Rock formed from the accumulation and compaction of mineral and organic particles on the Earth's surface, often containing fossils.