Statistical Assumptions and Data Analysis: Examining Normality andHomogeneity of Variance Using SPSS1.Why do we care whether the assumptions required for statistical tests are met? (Tip: You might alsowant to write your answer on a note card you paste to your computer.)Assumptions are needed to draw accurate conclusions about realitytest Different assumptions are madefor various statistical models and in order for models to reflect reality accurately; their assumptionsneed to be true.If assumptions are broken, accurate conclusions cannot be drawn aboutthe datadistribution. Therefore, part of the data process involves checking to make sure that your data doesn'tfail this assumption.2.Open the data set that you corrected in Activity #1 for DownloadFestival.sav. You will use thefollowing variables: Day1, Day2, and Day3 (hygiene variable for all three days). Create a simplehistogram for each variable. Choose to display the normal curve (under Element Properties) and titleyour charts. Copy these plots into your Word document.Preview Mode
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