Hours a week usually spent on doing homework summarized below for students of grades 7 and 10 Group Sample size Sample mean Sample standard deviation Grade 7 22 9.0 6.44 Grade 10 20 8.25 5.02 1) what are the population parameters and state the hypotheses of the two-sided significance test making a comparation for 2 population means. 2) The T statistic. 3) Explain how to make a conclusion for the significance test described in part a, using the significance level 0.05. Interpret your conclusion in context. 4) The 0.95 C.I for the difference in the population means of number of hours per week usually spent on doing homework between grade 9 students and grade 12. 5) What is the interpretation for the confidence interval found in part d in context