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The difference between a Roth IRA and a traditional IRA is that in a Roth IRA taxes are paid on the income that is contributed, but the withdrawals at retirement are tax-free. In a traditional IRA, however, the contributions reduce your taxable income, but the withdrawals at retirement are taxable. Assume you plan to devote $5,000 to retirement savings in each year. You will retire in 30 years and expect to live for an additional 20 years after retirement a. Assume the before-tax interest rate is 5%. What will be your after-tax 20 -year retirement consumption stream if you choose to save in a traditional IRA? Assume your tax rate is fixed at 30%. (Round your answers to 2 decimal place.) b. What will be your 20-year retirement consumption stream if you choose to save in a Roth IRA? (Round your answers to 2 decimal ploce.)