7 points Save A. The following data were obtained from a preliminary activity sampling exercise. IIIII IIIII IIIII Setting up Machine running Operator inspecting Idle IIIII IIIII IIII III ou need to calculate the additional number of observations needed to state with a 95% confidence level and an accuracy of 5% that the results will be a true reflection on the amount of idle time at this specific York space. Use maximum 2 decimals in your final answers except where instructed otherwise. Answer the following questions: 2.1 Which element/activity will you select to be your P value? 2.2 What will the fraction value of P be (max 2 decimals)? 2.3 What is the total number of observations required (rounded off no decimals)? 2.4 What is the number of additional observations you need to take for this study? 2.5 What will the accuracy of the study be as a percentage if only 100 additional observations can be made? o 25C Sunny ^ 6 10:4 Mofatse Cycles manufacture bicycles. It takes them 45 minutes to assemble one bicycle. The bicycle wheels cost R400 whilst the frame, brakes, gear, seat and other accessories cost R350. Overheads like rental cost and indirect labour cost them R50 per hour whilst other costs like office paper and ink cartridges cost them R160 per 8 hour shift, 8 points Save Ansv Determine the total factory cost for assembling if the direct labour cost is R25 per hour. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIY & Paragraph Arial T: . *