From 879b9b8e919b5ebcb25a275987450362683acb9e Mon Sep 17 00:00:00 2001
From: "Ryan C. Cooper" <ryan.c.cooper@uconn.edu>
Date: Tue, 3 Sep 2019 10:15:05 -0400
Subject: [PATCH] fixed check_lab00.py

---
 check_lab00.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/check_lab00.py b/check_lab00.py
index 2e88a64..a1c0be0 100644
--- a/check_lab00.py
+++ b/check_lab00.py
@@ -1,4 +1,5 @@
 import numpy as np
+from scipy.stats import norm, t
 
 def check_p01(data):
     mu=np.mean(data)
@@ -36,7 +37,7 @@ def check_p03(data1,data2):
 
     print('t=%1.2f'%tstat)
 
-    df=2*N-2
+    df=N1+N2-2
     if tstat>t.interval(0.95, df)[1] and (mu1-mu2)/mu1<0.1:
         points=2
         print('Nice work')
@@ -46,4 +47,4 @@ def check_p03(data1,data2):
         return points
     
 if __name__=='__main__':
-    print('This is the library to check Lab 00 prework')
\ No newline at end of file
+    print('This is the library to check Lab 00 prework')