Stretch Exercise 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 the various attributes of the categorical variables in the sample, such as the proportion of males and females, different educational levels, and marital status BUSINESS ANALYTICS: DATA, MODELS AND DECISIONS PivotTables that break down the averages of ratio variables by gender, education, and marital status Cross-tabulations by gender and educations, gender and marital status, and education and marital status. Z-scores for examination of potential outliers