Fear of public speaking is a common problem for many individuals. A researcher wishes to see if educating individuals on the aspects of public speaking will help people be more confident when they speak in public. She designs three programs for individuals to complete. Group A studies the aspects of writing a good speech. Group B is given instruction on delivering a speech. Group C is given practice and evaluation sessions on presenting a speech. Then each group is given a questionnaire on self-confidence. The scores are shown. At α = 0.05, is there a difference in the scores on the tests?

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