A Visual Approach to SPSS for Windows 2nd Edition by Leonard Stern

تمرين 1

Open the file WaterUseSpokane.sav. The variable Changerate shows the rate of change in gallons of water consumption per person of residents of the city of Spokane compared to the previous year. Make a histogram and a boxplot for this variable and obtain a table of descriptive statistics for the variable. Use the variable Year to label cases in the boxplot.
2. How would you describe the central tendency, variability, and shape of the distribution of the variable Changerate
3. What year shows the highest rate of change How would you describe the extremity of that year's change
4. For the variable Usageperc make a histogram and a boxplot and obtain a table of descriptive statistics for the variable. Use the variable Year to label cases in the boxplot. How would you describe the central tendency, variability, and shape of the distribution of the variable Usageperc