notesfromregardingConfidenceIntervals1.xlsx

Confidence Intervals

QNT275 Week 3
Preps for next week's homework assignment
Confidence intervals
1
90%
0.05 0.05
-1.645 1.645
0.975
two tail
margin of error
Z s
Ö n
Standard error
s
Ö n
One tail
0.01 --------> 2.326
0.05 --------> 1.645
0.10 --------> 1.282