(1) Of great importance in an experiment is the accuracy of the measurement. As Fig. 1 shows, the students utilized a meter stick to measure the position of the bottom edge of the hanger. Like metric rulers, the meter stick has numbered marks for each centimeter. Each centimeter is then divided into 10 marks of 1 millimeter each. Millimeters CM Centimeters In the measurement shown above, how many digits can you read with certainty? Explain your reasoning. (2) When you look at the Data Tables, something should immediately catch your eyes: most groups give their measurements to one decimal, a few to two decimals. Are all these groups correct? Explain your reasoning. (3) When you look at the histogram '% Difference' for the Red spring, does anything stick out? Comment on the performance of the various groups. (4) When you look at the histogram '% Difference' for the Blue spring, does anything stick out? Comment on the performance of the various groups. (5) Overall, do the measured values of the spring constants agree with the accepted values? Support your answer numerically for each spring. (6) The graphs Mass versus Position for the Red and the Blue springs are shown on page 8. Based on these, what conclusions can you draw about this experiment? Was Hooke's Law verified? Explain your reasoning. (7) Does anything of relevance stick out in any of these graphs? If so, what is it