Wetherbee Tech Services (WTS) Is a chaln of computer maintenance techniclans for households and small businesses. The following data are avallable for last year's services: - WTS recorded 120,600 tech calls last year. It had budgeted 126,200 calls, averaging 90 minutes each. - Standard varlable labor and support costs per tech call were as follows: Direct IT specialist services: 90 minutes at $54 per hour Variable support staff, supplies, and overhead: 30 minutes at $24 per hour $81 - Flxed overhead costs: Annual budget $4,141,200 - Fixed overhead is applied at the rate of $36.00 per call. - Actual tech service call costs: a. Prepare a cost varlance analysis for each varlable cost for last year. b. Prepare a fixed overhead cost varlance analysis. Complete this question by entering your answers in the tabs below. Prepare a cost variance analysis for each variable cost for last year. Note: Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select either option