2. Change all of the numbers in the data area of your worksheet so that it looks like this: If your formulas are correct, you should get the correct answers to the following questions. (a) What is the Predetermined overhead rate? (b) By how much is the manufacturing overhead underapplied or overapplied? 3. Either print or make a copy of your worksheet in your workbook before proceeding. You will need to refer back to this worksheet. Change the estimated amount of the allocation base to 86,000 machine-hours, but keep everything the same as in Requirement 2 . The data area of your worksheet should now look like this: (a) By how much is the manufacturing overhead underapplied or overapplied? (b) Why is the amount of underapplied (overapplied) manufacturing overhead different from Requirement 2 above? 4. Change the estimated amount of the allocation base back to 94,000 machine-hours, so the data area of you worksheet looks exactly the same as in Requirement 2. Now change the actual manufacturing overhead cost from $816,500 to $808,300. The data area of your worksheet should now look like this: (a) By how much is the manufacturing overhead underapplied or overapplied? (b) Why is the underapplied (overapplied) manufacturing overhead different from Requirement 2 above? Complete this question by entering your atswers in the tabs below. What is the Predetermined overhead rate? Note: Round your answer to 2 decimal places