3 Obicunator percontage.What sampling is a statistical tedumigue for determingry He portion of time spent by subjects in various dehined actimity cetegories. The manager of Jules Steel (Pty)11. the everal workers are spending too much bow uniting for meteriale durny the cutting process You havt been tasked with conducting a work sampling study to quantity this percentage of idle timeYu endurited a pelinimany study over one surft and made 150 random dervations, recorling that the workers were the Lormy so of these elsevertions.15. Calculates the doesved percentage of dife time and noking have. Show all steps1.2 Colculate (based on 1.1) the number of observations needed to achieve ar acsuracy of -5% et a 95% confidence level. Ulic broup provided in your study material.