Several Space Probes Have Searched for Evidence of Water on the Moon

question 125

Multiple Choice

Several space probes have searched for evidence of water on the Moon. What have they concluded?

• A) There is no water on the Moon, in ice or liquid form.
• B) There is water ice near the Moon's poles but no liquid water.
• C) There is water ice near the Moon's poles and evidence for rare liquid water flows on its surface.
• D) The question of whether water ice exists on the Moon remains unanswered.

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Definitions:

Critical Value

A critical value is a point on the distribution of a statistical test that marks the boundary of the rejection area for the null hypothesis, aiding in decision making regarding statistical significance.

Wilcoxon Rank Test

A nonparametric statistical test used to compare two related samples, to assess whether their population means ranks differ.

Nonparametric Tests

Statistical tests that do not assume a specific distribution for the data, making them appropriate for non-normal data distributions or ordinal and nominal data.

Preschool

An educational establishment or learning environment for children before they begin compulsory education at primary school.