Use the following approaches to analyze the survey data in the Excel file Insurance Survey. 

■ Frequency distributions and histograms for the ratio variables (age, years employed, and satisfaction) 

■ Descriptive statistical measures for the ratio variables using the Descriptive Statistics tool 

■ Proportions for various attributes of the categorical variables in the sample, such as the proportion of males and females, different educational levels, and marital status 

■ PivotTables that break down the averages of ratio variables by gender, education, and marital status 

■ Cross-tabulations by gender and education, gender and marital status, and education and marital status 

■ Z-scores for examination of potential outliers