Question:
The City Resource Recovery Company (CRRC) collects the waste discarded by households in a region. Discarded waste must be separated into categories of metal, paper, plastic, and glass. In planning for the equipment needed to collect and process the garbage, CRRC refers to the data in Data Set 1 in Appendix B and uses Excel to obtain the results shown in the following display. At the 0.05 level of significance, test the claim that the four specific populations of garbage (metal, paper, plastic, glass) are the same. Based on the results, does it appear that these four categories require the same collection and processing resources? Does any single category seem to be a particularly large part of the waste management problem?
Use the Kruskal-Wallis test.
Transcribed Image Text:
X Microsoft Excel Kruskal-Wallis test Ele Edit Vew Insert Farmst Tools ots Window Help 1회- Ariail A2 2 Sample ID Sample ID Sample ID 5 6 Alpha Sample ID 3 o n4 11 R1 12 R2 13 R3 4 R4 15 k 0.05 62 62 62 62 5604.8 12784.4 4730 6 7755 2 17 N 18 Test statistic H 19 Critical hH 20 P value 16 Sum of Rsquare terms 44740626 248 122. 4253012 7814724703 2 31774E-26 M Kruskal-Wallis test/