Market B started using automatic payment machine, however they have a doubt about the utilization ratio of this new machine. Based on their initial observations they think idle time of the machine is at least 50% (p-0,5). They want to complete a formal analysis with confidence level of 90% and an error bound of maximum 7 percent (e-0.07). Calculate the minimum number of observations needed for this study 3. A furniture company just completed a work analysis on the total completion time for dying process of handmade dining tables. They have concluded that on average the process takes 27 minutes. However they want to incorporate the performance of the workers and allowance time on this observed value. They think the people they observed was somehow slow, hence they want to use a performance rate of 0.93 and they also want to allow 10% allow=0.1) of job time. Based on these parameters please calculate the normal and standard time estimates for this process. 4. Manufacturer went through serious process changes in order to eliminate unnecessary processes from the work flow. However they have to bare the slow down in the process for a while due to this transition. They want to estimate when they can reach to the expected performance level based on a "learning curve study. For a certain task they have measured a completion time of 137 minutes in the first time an average employee finished the renewed task. Please provide the values in the below table for three different learning rates and two different repetition units. Learning Rate 80% 70% 60% 2nd 4th 13th 27th HINT: You can use the excel template that we used during the class and saved inside "Class Material folder of Teams group for the BA (901) or Itslearning. . You can use the below table in order to find the z value for your desired confidence level. Cience inter . Remember the learning theory which says learning rate can be directly observed everytime you double the number of repetitions. For the first two rows the values can be directly calculated from this theory. For the last two you need to apply the formula