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...What is the value of level significance inference for a i p concepts will be used hypothesis testing and estimation are factors which affects width confidence interval two forms point single e g mean proportion difference means proportions or rr etc range values ci consists intervals statistics never having to say you re certain give no indication about clinical importance observed association relying on information from sample always lead some uncertainty that tries quantify this example under repeated sampling cis would contain true population parameter versus answers question there statistically significant between treatments groups estimate its size treatment how precisely did trial determine computing general formula statistic magnitude effect odds ratio risk in correlation regression coefficient varies construct z variability standard error s measure...