Psychology Statistics Final Exam Find the Mean, Median, Mode, Range, and IQR of the following data set: (8,15,16,16, 18) Mean Median Mode Range IQR Find the Mean, Median, Mode, Range, IQR and Standard Deviation of the following data set? (9,20,29,29,30, 33) Mean Median Mode Range IQR Standard Deviation Calculate the Z Score: Z=X-M/Standard Deviation X=15 M=4 Standard Deviation= 10 Graph: Calculate the Z Score: Z=X-M/Standard Deviation Data Set: 7,9,18, 24, 25 X=8 Standard Deviation= 3 Find the mean: Find the Z Score 5.Calulate the Pearson by completing the chart X Y X-Xmean Y-Ymean X-Xmean^2 Y-Ymean^2 3 2 5 6 9 10 13 12 6. X Y X-Xmean Y-Ymean X-Xmean^2 Y-Ymean^2 8 12 12 16 16 26 20 40 What is the difference between a correlational study and an experiment? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ What is difference between a null hypothesis and an experiment? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 9.What is the purpose of a correlational study? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________ What is the purpose of a scatter plot? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Write 2-3 paragraphs describing the importance of statistics in the field of Psychology and use at least 2 sources