Examlex
The concentration of H3O+ in a solution is 6 × 10-4 M at 25°C.What is its hydroxide-ion concentration?
Normal Populations
Populations in which the distribution of data points follows a normal (bell-shaped) distribution curve.
Two-Tailed Hypothesis Test
A statistical analysis method where the significance of the observed data can be in either tail of the distribution, testing for either too high or too low outcomes relative to the hypothesized values.
Critical Value
A threshold in a statistical test that a test statistic must exceed to reject the null hypothesis.
T-Distribution
A probability distribution that is used to estimate population parameters when the sample size is small and the population variance is unknown.
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