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