Examlex
The oxidation number of N in NO2- is ________.
One-tailed
Describes a hypothesis test or statistical analysis where the significance is tested in only one direction, indicating the expected direction of an effect.
Directional
In hypothesis testing, directional refers to a hypothesis that specifies the direction of an expected difference or relationship (e.g., greater than, less than) between two groups or variables.
≠ Symbol
A mathematical symbol indicating that two values are not equal.
Two-tailed
A type of statistical test that is designed to consider both directions of effect or difference, allowing for the exploration of relationships in both positive and negative directions.
Q18: What is the oxidation number of chromium
Q28: Which of the statements about cathodic protection
Q33: The vaporization of a substance at its
Q43: Hydrogen can form hydride ions.Elements in group
Q44: Gamma radiation only changes the atomic number
Q70: The value of ΔG° at 25 °C
Q96: The most common oxidation state of silicon
Q102: The loss of electrons by an element
Q117: The overall polarity of organic molecules is
Q160: What percentage of electricity generated in the