Case Study A

Case Study B

Case Study C

Case Study D

Testability × Effectiveness

0.988

0.846

0.988

0.782

tr

9.046345

2.628374

9.046345

1.774351

tr-Critical Value

2.776

2.5706

2.776

2.776

tr > tr-Critical Value

√

√

√

×

H₀(T^E)

Reject

Reject

Reject

Accept