The information in this has is used in questions 1, 2, and 3. All current-carrying wires produce electromagnetic (EM) radiation, including the electrical wiring running into, through, and out of our homes. High-frequency EM radiation is thought to be a cause of cancer; the lower frequencies associated with household current are generally assumed to he harmless. To investigate this, researchers visited the addresses of children in the Denver area who had died of some form of cancer (leukemia, lymphoma, or some other type) and classied the wiring conguration outside the building as either a high-current conguration (HCC) or as a low-current conguration (LCC). Here are some of the results of the study. Leukemia Lymphoma Other Cancers HCC 52 10 1? LCC 34 21 31 The Ivnitab output for the above table is given below. The output includes the cell counts, the expected cell counts, and the chi-square statistic. Expected counts are printed below observed counts. C1 C2 CS Total 1 52 10 17 T9 49.97 11.39 17.64 2 34 21 31 136 36.03 19.61 30.36 Total 136 31 48 215 chisq = 0.002 + 0.170 + 0.023 + 0.043 + 0.099 + 0.013 = 0.435 1. Using the above data, what are the appropriate degrees of freedom for the chi-square statistic? (a) 6 [b] 2 (c) 3 (d) 5 Ife} None of the above