answer all questions with explanation. Also tell is it an unusual no. of hours

The data in the table represents the number of sick leave hours all employees at a company have. 84.7 74.4 84.9 77.1 78.4 82.7 91.1 86.6 78.9 78.9 91.5 86.5 88.7 92.2 Round to the fourth as needed. Input the maximum and its z-score. maximum: z-score: Show your work for calculating the z-score. Edit * Insert Formats X X CO SS E+ E A Is this an unusual number of hours? Explain. X X IC Edit - Insert * Formats CO W F