diff --git a/yli/sig_tests.py b/yli/sig_tests.py
index 0258b71..368cc2c 100644
--- a/yli/sig_tests.py
+++ b/yli/sig_tests.py
@@ -43,10 +43,10 @@ class TTestResult:
 		self.delta_direction = delta_direction
 	
 	def _repr_html_(self):
-		return '<i>t</i>({:.0f}) = {:.2f}; <i>p</i> {}<br><i>δ</i> ({:g}% CI) = {}, {}'.format(self.dof, self.statistic, fmt_p(self.pvalue, html=True), (1-config.alpha)*100, self.delta.summary(), self.delta_direction)
+		return '<i>t</i>({:.0f}) = {:.2f}; <i>p</i> {}<br>Δ<i>μ</i> ({:g}% CI) = {}, {}'.format(self.dof, self.statistic, fmt_p(self.pvalue, html=True), (1-config.alpha)*100, self.delta.summary(), self.delta_direction)
 	
 	def summary(self):
-		return 't({:.0f}) = {:.2f}; p {}\nδ ({:g}% CI) = {}, {}'.format(self.dof, self.statistic, fmt_p(self.pvalue, html=False), (1-config.alpha)*100, self.delta.summary(), self.delta_direction)
+		return 't({:.0f}) = {:.2f}; p {}\nΔμ ({:g}% CI) = {}, {}'.format(self.dof, self.statistic, fmt_p(self.pvalue, html=False), (1-config.alpha)*100, self.delta.summary(), self.delta_direction)
 
 def ttest_ind(df, dep, ind, *, nan_policy='warn'):
 	"""Perform an independent-sample Student's t test"""