PART B (14 POINTS) The data below for Brighton K - 12 schoolteachers relate to their years of teaching in Brighton and whether they teach at the elementary (grades K - 5), middle (6 - 8), or high school (9 - 12) they teach. level. You wonder if how long someone has worked in Brighton is related to the education level Elementary School Middle School High School 0 -5 years 125 50 25 6-15 years 100 50 50 16+ years 100 100 100 a) (3 points) What's your null and alternative hypothesis. Page 6 of 14b) (7 points) Calculate the test statistic related to your part a) hypothesis. Show your work. c) (4 points) If you want to be 95% confident in your investigation of the null hypothesis, what criteria would you use to decide whether the test statistic you calculated in part b) indicates you can or cannot reject your null hypothesis? Be specific. Page 7 of LA