Define the indepent and dependent variablesComment on internal and external validityOut of richter scale,schmantic differential scale,constant sum waiting scalewhich one would u advocate to use for the studyIs it possible to conduct a descriptive study here ,which one would u recmmend, a cross sectional study or longitudinal one Q1)Self reported scores on the SAT verbal,Sat quantitative, and ACT wer collected as a part of the synthetic aperture personality assesment (SAPA) web based personality assesment project Age,Gender,and Education are also repoeted from 700 subjectsIs there a relationship between the education level and the SAT scores.Find out whether the ACT composite score as per the national norm have a mean of more than 20.Q2)The data water.cst represents The data wer collected in an investigation of envoirnemental cause of disease. they show the annual mortality for 1 lac per males averaged over the years 1958-1964 and the calcium concentration(parts/millions) in the drinking water for 69 large towns.the higher the calcium concentration the harder the water,1) Are mortality and water hardness related 2) either or both variables defer between northern and southern towns