You are comparing some observed data with the expected uniform distribution to see if they are the same. The data appear in the table below. Find the test statistic, 2 0 , for the chi-square goodness-of-fit test. If necessary, round the final answer to one decimal place. 2 0 = k ( O E ) 2 E Outcome 1 2 3 4 Expected 10 10 10 10 Observed 9 6 10 15