e/Comparing means

Information
has gloss	eng: Is there a difference ? \| class="wikitable" \|+Ordinal and numerical measures \|- \|- \| rowspan="3" align="center"\| 1 group \| rowspan="3" align="center"\| \| align="center"\| N ≥ 30 \| align="center"\| \| align="center"\| One-sample t-test \|- \| rowspan="2" align="center"\| N < 30 \| align="center"\| Normally distributed \| align="center"\| One-sample t-test \|- \| align="center"\| Not normal \| align="center"\| Sign test \|- \| rowspan="6" align="center"\| 2 groups \| rowspan="3" align="center"\| Independent \| align="center"\| N ≥ 30 \| align="center"\| \| align="center"\| t-test \|- \| rowspan="2" align="center"\| N < 30 \| align="center"\| Normally distributed \| align="center"\| t-test \|- \| align="center"\| Not normal \| align="center"\| Mann–Whitney U or Wilcoxon signed-rank test \|- \| rowspan="3" align="center"\| Paired \| align="center"\| N ≥ 30 \| align="center"\| \| align="center"\| paired t-test \|- \| rowspan="2" align="center"\| N < 30 \| align="center"\| Normally distributed \| align="center"\| paired t-test \|- \| align="center"\| Not normal \| align="center"\| Wilcoxon signed-rank test \|- \| rowspan="5" align="center"\| 3 or more groups \| rowspan="3" align="center"\| Independent \| rowspan="2" align="center"\| Normally distributed...
lexicalization	eng: Comparing means
instance of	c/Statistical methods