Question 2 Concerns are raised with the precision of the strain gauge in Question 1. Repeated measurements are then made at a strain of 1mm to observe the variation in measured voltage, with the results given in Table 2 Table 2: Repeated measurements at 1mm of strain Voltage (V) 2.11 2.08 2.05 2.09 2.01 2.08 2.08 2.08 2.00 2.09 2.08 2.00 2.06 2.00 2.03 Calculate the standard error and the upper and lower limits on the measurements for a 95% confidence interval. ii) Given that the precision required on the strain gauge is at least 0.05mm, comment on whether the precision of the instrument is sufficient and whether the calibration data used to generate the fit was sufficiently accurate