Ratio Percentage Test

Which of the following statements concerning SEP and Keogh plans is not correct?

1. A SEP must meet fewer reporting requirements than are imposed on a Keogh plan.
2. A SEP is not considered by the IRS to be a qualified plan as is a Keogh plan.
3. A SEP is similar to a defined-contribution plan; a Keogh may be either a defined-benefit plan or a defined-contribution plan.
4. A SEP must meet the same vesting requirements as a Keogh plan.