Table 2. Test of equal variance between discount rates
Discount 0%-10%
Discount 10%-20%
Discount 0%-20%
Null hypothesis
σ
2
0%
=
σ
2
10%
σ
2
10%
=
σ
2
20%
σ
2
0%
=
σ
2
20%
Test statistic
F
(df
1
=11, df
2
=11)
0.42098
3.1732
1.3359
p
-value
0.167>0.05
0.068>0.05
0.639>0.05
Decision
σ
2
0%
=
σ
2
10%
σ
2
10%
=
σ
2
20%
σ
2
0%
=
σ
2
20%