49 A professor believes that, in recent years, the ethnic composition of the students in the university has changed. According to the data collected a few years ago, there were 70% of students from European origins, 20% Asian origins, 10 ed 5% Indigenous, and 5% Others. To test his belief, he randomly sampled 500 students and recorded their ethnicity as out of shown below: 19 2 28 29 European 318 Asian 132 37 3 Indigenous 25 Others 25 46 47 The professor conducted a chi-squared goodness-of-fit test. Which of the following is the obtained chi-squared statistic for this test? Finish at A. 13.1657 B. 10.9777 O C. 0.2288 O D. 5.1443 O E. 8.7898