A researcher has collected statistics pretest scores for students representing 3 different age groups
18-30 31-45 45 and up
3 5 10
7 10 2
9 9 8
6 8 8
4 6 5
Do hypothesis test using ANOVA to find if significant difference. Use alpha .05. All hypothesis steps and find degrees of freedom and critical values, calulate test statistic and effect size and write results in apa style.
Use Scheffe posttest if appropriate.
i need help because i have this posttest like a homework and i never take this class and I have to finish the posttest and i don't know what to do.
Can you help me.?