Examlex
________ refers to the logistics of EC systems mainly in B2C.
Test Statistic
A value calculated from sample data during a hypothesis test. It's used to assess the evidence against the null hypothesis.
Chi-squared Distributed
Refers to a statistical distribution that is used to assess the goodness-of-fit of observed data with theoretical expectations under the null hypothesis.
Normal Distribution
A bell-shaped distribution curve which is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.
Variance
A measure of the dispersion indicating how far individual numbers are from the mean.
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