Using the R software for statistics kindly answer the following questions:

A B C D E F Period Household Plastic Waste 2 Start 15.89999 3 Start 14.67262 W N 4 Start 16.70418 5 Start 14.95252 6 Start 16.78663 7 Start 17.51794 8 Start 16.47142 Start 18.39038 10 Start 12.83821 11 Start 10 16.88941 12 Start 11 14.48262 13 Start 12 15.90079 14 Start 13 14.30676 start 14 17.57529 Start 15 14.00271 17 Two Months After 1 13.58657 18 Two Months After 2 13.88355 19 Two Months After 3 16.00556 20 Two Months After 13.27222 21 Two Months After 12.76465 22 Two Months After 6 13.87304 23 Two Months After 12.85866 24 Two Months After 8 13.64466 25 Two Months After 9 14.19869 26 Two Months After 10 15.08324 27 Two Months After 11 12.83912 28 Two Months After 12 13.52566 29 Two Months After 13 14.31791 30 Two Months After 14 15.84604 31 Two Months After 15 14.999062. The use of plastic-and-aluminum laminated sachets produced by multinational companies has a signicant contribution to the country's volume of plastic waste. Most of these sachets are non-recyclable and of no- value, until recently. the \"Ecobricks' was invented. Eoobricks are plach bottles packed with plastic to a set density to create a reusable building block. It is of interest to know whether the amount of plastic waste consumed by the household can be reduced by making Ecobricks. Households ofthe same eoonornic state and daily household consumption were randome selected to make Eccbn'cks. The amount of plastic waste (in kg} was recorded at the start and two months after to monitor and evaluate the plastic waste being reduced when making Eoobn'cks.To answer the researcher's interest, you recommended using a parametric test t-test which requires the data of paired differences of the amount of plastic waste at the start and two months alter to be normally distributed. Using R Commander, the following results for the test of the assumptions were generated. R COMMANDER OUTPUT ShapiroWilk normality test data: Paired.Difference = H.9616, pvalue = H.312! RCOMMANDEROUTPUT a. Discuss and interpret all the results obtained in testing the assumptions of the parametric t-test. (4 points} b. Which between a parametric test or a nonparametric test would you recommend? [3 points