Can you help me with this question, mainly the second one, and explain to me what the phrase "vary up to 5% from standard mix" means?

Mode Company also manufacturing jackets but, unlike Webb, employs workers of different skill (or experience) levels. Workers are of Low, Medium, or High skill. Workers with greater skill levels focus on the more complicated aspects of the jacket, such as adding darts and fancy seam lines. they are compensated accordingly. Mode's production standards require 0.8 laborhours to produce 1 jacket; 50% of the hours are budgeted to be Low skill, 30% Medium, and 20% High. The direct manufacturing labor inputs budgeted to produce 1 jacket are as follows: Required: (1) Calculate the direct manufacturing labor price variance and efficiency variances; (2) We will assume that to maintain quality (, mix percentages of each type of labor can only vary up to 5% from standard mix. Calculate the direct manufacturing labor mix and yield variances.(/)