A student does an experiment to determine the specific heat of iron metal. The student repeats the experiment 5 times and gets the following values for specific heat (all in J/g oC): 0.463, 0.449, 0.451, 0.427, and 0.480. The accepted value for the specific heat of iron is 0.450 J/g°C. Required:
a. Calculate the student's percent error. Does the percent error evaluate the accuracy or the precision of the student's measurements? Explain
b. Calculate the standard deviation for the student's data set. Does the standard deviation evaluate the accuracy or the precision of the student's measurements? Explain.