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. Required: a. Prepare a cost variance analysis for each variable cost for last year. b. Prepare a fixed overhead cost variance analysis. Complete this question by entering your answers in the tabs below. Prepare a fixed overhead cost variance analysis. Note: 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