Rework the in-class example of the application of the bottom-up approach by changing the marginal tax rate to 21%. Compute Company X's beta. Between 2.26 and 2.28 Between 2.28 and 2.30 Between 2.30 and 2.32 None of the above Rework the in-class example of the application of the bottom-up approach by changing the marginal tax rate to 21%. Compute Company X's beta. Between 2.26 and 2.28 Between 2.28 and 2.30 Between 2.30 and 2.32 None of the above