Bank manager Art He wants to determine the percent of time that telars are working and ide. He decides to use work samping, and his initial estimate is that the telers are do 12% of the tine Round al intermediate calculations to at least two decimal places before proceeding with further calculations.) The number of observations that need to be taken by Hill to be 99.79% confident that the results will not be more than o% from the true route fround your response to the next whole number Installing mutters at the O'Sullivan Garage in Golden, Colorado, involves five work elements. Ju Sullivan has timed workers performing these tasks seven times with the results shown in the following table. 7 5 14" 7 13 17 3 4 Performance Observation (minutes Element Rating 1 2 3 5 Select correct mutter 110% 5 5 3 Remove old muffler 85% 6 8 7 7 8 7 Weldinstall new mutter 105% 16 14 14 12 15 Checkinspect work 100% 2 23 4 5 17. Complete paperwork 135% 5 8 7 Employee has lengthy conversations with boss (not job related) By agreement with her workers, all alows a 14% fatigue factor and a 12% personal time factor to compute the standard time for the work operation, il excludes albervations that appear to be unusual or nonrecurring She does not want an error more than 5% (Round al intermediate calculations to two decimal places before proceeding with further calculations) The normal time for the overal process-minutes (round your response to two decimal places) a) The standard time for this process minutes (round your response to two decimal places). b) The number of observations that are required for a 99% confidence level within 5% accuracy - bervations (round your response to the immediato higher whole number)