2. A researcher wants to find out how students feel about a proposal to ban smoking on campus. She selected THREE groups of “students who currently smoke”, “students who formerly smoke”, and “students who never smoke”. Also, she selects a sample of 5 students from each group and conduct an ANOVA test. The researcher obtained the following results:
SST=70
SSW=30
• Write the ANOVA formula.
• Set up the HO and H1
• Calculate ANOVA (F) and conclude whether accept or reject HO.
(Hint; you must calculate and obtain the other components of ANOVA from the given information)