Endorsement to pay for improved quality

Satisfaction of electricity quality

χ2 = 9.30

(1 − p = 94.60%+)

Dof: 4

Disapproval arguments

χ2 = 391.81

(1-p ≥ 99.99+++)

Dof: 4

Consequences of outage

χ2 = 3.84

(1 − p = 42.69%)

Dof: 5

Price satisfaction

χ2 = 8.54

(1 − p = 79.88%)

Dof: 6