Amanufacturer of plastic pipes uses a scale with an accuracy of 2.2% of its max reading of 5 kg to measure the mass of each pipe the company produces in order to calculate the uncertainty in mass of the pipes. in one batch of 10 parts, the mean is 2.74 kg and standard deviation is 0.0165. find the random uncertainty of a single measurement at a 95% confidence level in kg. select the most correct a) 0.0465 kg b) 0.0373 kg c) 0.0368 kg d) 0.0302 kg find the random uncertainty of the mean of the measurements. select the most correct a) 0.0118 kg b) 0.0096 kg c) 0.0147 kg d) 0.0116 kg now that you know the random uncertainty, and were given the systematic uncertainty (accuracy of 2.2% of its range of 5 kg), calculate the total uncertainty (wx) of a single measurement. select the most correct a) 0.1160 kg b) 0.1141 kg c) 0.1162 kg d) 0.1194 kg