The table below shows a set of mass flow rates of oil in a pipe, 1 2 3 4 5 6 8.11 7.92 8.32 7.72 7.90 8.05 No 9m (kg/s) (a) Calculate: 7 8.29 (1) the mean mass flow rate. (2) standard deviation. (3) normalised standard deviation. (b) Present the measurement results with a 95% confidence limit. 8 8.10 9 7.89 10 8.00

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