steps to solve this (please explain steps and don't omit anything on the way)

Exercise 8 Nikki wanted to know whether there is a significant difference in 1002MSC marks among students from different degrees. However, she has forgotten how many people took part in the study. Fortunately, she has some remaining information which may help her to work backwards to find out the number of subjects: There were 4 groups being compared: Bachelor of Biomedical Science, Bachelor of Health Sciences, Bachelor of Pharmacy, Bachelor of Occupational Therapy Overall (aka omnibus) alpha was set at 0.1 T-critical = 2.567 Nikki took an ANOVA test and she came to the conclusion that there is a significant difference in at least one of the groups, so she proceeded to use the Bonferroni post-hoc test. How many participants were there to begin with