Answer and Explanation:
The computation of the effective interest rate is shown below:
For Fidelity bank
= (2 × 4 × $150,000 × 0.12) ÷ (4 +1 )× ($150,000 - $18,000 - ($150,000 × 26%)
= 30.97%
For southwest bank
= (2 × 12 × $150,000 × 0.12) ÷ (12+1 )× ($150,000 - ($150,000 × 13%)
= 25.46%