Q3. The following data were obtained in an experiment to verify whether there is a systematic difference in the weights obtained with the two scales: Rock specimen Scale 1 (g) Scale 2 (g) 12.13 12.17 17.56 17.61 3 9.33 9.35 11.4 11.42 28.62 28.61 10.25 10.27 23.37 23.42 8 16.27 16.26 Use 1% level of significance to test whether the difference between the means of the weights obtained with the two scales is significant. Ho : Had = 0 Ha : la #0 Hint: Use paired t-test because of dependent and small samples