For Assignment #14, the first two questions are asking you to compare doing multiple t-Tests to an Analysis of Variance (ANOVA) test, looking at the similarities and differences, as well as the advantages and disadvantages of each.
For 14.3, you are focusing on the Table of Variances (see formula sheet part IV.D) and the relationships within the table (see class videos and the formula sheet for the vertical and horizontal relationships within the table). The hint is to do the degrees of freedom column calculations first (see formula sheet part III).
For 14.4, be sure and diagram your research according to the Diagramming Your Research class handout and the class videos. Then work through the One Way ANOVA Formula Sheet. In this problem, you have the full research data. Show all your work including your table to do your calculations for calculating means and standards deviations for each group, along with the statistical analysis.