Final answer:
To find the effective annual rate (EAR) of each CD, use the formula for compound interest. CD #1 has a slightly higher EAR than CD #2.
Step-by-step explanation:
To find the effective annual rate (EAR) of each certificate of deposit (CD), we can use the formula for compound interest:
EAR = (1 + r/n)^n - 1
Where:
- r is the annual interest rate
- n is the number of compounding periods in a year
For CD #1 with 5.95% APR compounded weekly, the EAR can be calculated as:
EAR = (1 + 0.0595/52)^52 - 1 = 0.061714...
For CD #2 with 6.00% APR compounded monthly, the EAR can be calculated as:
EAR = (1 + 0.06/12)^12 - 1 = 0.061678...
Comparing the EARs, CD #1 has a slightly higher effective annual rate of 6.17%, while CD #2 has an effective annual rate of 6.17%. Therefore, I would recommend CD #1 to your grandmother.