Examlex
Given the following reaction: Na2SO4(s) + 2 C(s) → Na2S(s) + 2 CO2(g)
How many grams of carbon are required to produce 18.4 g Na2S(s) ?
Critical Value
A threshold in hypothesis testing, which the test statistic must exceed to reject the null hypothesis.
Level of Significance
A threshold in hypothesis testing, below which the null hypothesis is rejected, commonly set at values like 0.05 or 0.01.
Critical Value
A critical value is a point on the scale of the test statistic beyond which we reject the null hypothesis, used in significance testing.
Null Hypothesis
A statement used in statistics that suggests there is no effect or no difference, and any observed variance is due to chance.
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