Examlex
In analyzing the operation of a firm, an economist assumes the firm wants to
Test Statistic
A number derived from sample information, employed in hypothesis testing to decide if the null hypothesis should be discarded.
Sample
A subset chosen from a larger population for the purpose of investigation.
Normal Probability Plot
A graphical technique for assessing whether or not a data set is approximately normally distributed, utilizing a plot of sorted values versus their expected values under normality.
Residuals
Differences between observed and predicted values of data in statistical models, indicating the error in predictions.
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