... Correlational Analyses can be applied along with the descriptive to analyze relationships among variables Analyses of Precision of estimates and Nonresponse is an analysis of the precision (accuracy) ... pronouncing θ, δ, ʃ , ʒ , ʤ , ʧ - find out causes of mistakes made by Vietnamese learners in pronouncing θ, δ, ʃ, ʒ , ʤ, ʧ - find out solutions to make teaching and learning process better so that mistakes ... offered by the Post Graduate Department- University of Language and International Studies – VNU,HANOI My thesis’s title is A study on common mistakes made by Vietnamese beginners of English in pronouncing...