Using the "Example Dataset" and SPSS, apply the ttest to assess the following statement: "Men and women have different incomes in this city." Show your calculations and copy of the SPSS output in a Word document. In a separate 250500 Word docmuent, address the following questions: 1. Describe what ttest is the most appropriate and explain why. Discuss whether you used a onetailed or twotailed test and explain why. 2. Using SPSS, calculate the ttest and provide the test statistic and critical value assuming an alpha of .05. 3. Calculate the effect size using r2. 4. Interpret the results by (a) stating the reason the study or test was done, {b presenting the main results, [c] explaining what the results mean, and (d) making suggestions for future research