1. A marketing company is interested in whether a particular advertisement will increase interest in a new social networking website. A random sample of 10 teenagers is chosen, and their interest level in the new website is measured in a 1-100 scale before and after seeing the advertisement. Test the claim at 5% level of significance. The individual results are as follows. Before ad 33 28 25 43 55 41 3O 53 45 26 After Ad 37 3O 26 41 59 4O 27 53 49 39 1.1. Test for Homogeneity of Variances (Ftest to test the equality of two variances) at 5% level of significance (If applicable) a. Ho: Ha: b. level of significance: test-statistic: tail of distribution: c. Decision Rule d. Computation e. Decision f. Conclusion 1.2 Use a 0.05 significance level to test the claim. a. Ho: Ha: b. level of significance: test-statistic: tail of distribution: c. Decision Rule d. Computation e. Decision f. Conclusion