Stats hw help! Thanks Intense or repetitive sun exposure can lead to melanoma, a

Question

Stats hw help! Thanks

Intense or repetitive sun exposure can lead to melanoma, a rare but severe form of skin cancer. Patterns of sun exposure, however, differ between men and women. A study of cutaneous malignant myeloma in the Italian population recorded the distribution of melanoma by body location for men and for women. Figure 22.10 (below) displays the observed and expected counts for this study and the chi-square test from CrunchIt!

Stats hw help! Thanks

Intense or repetitive sun exposure can lead to melanoma, a rare but severe form of skin cancer. Patterns of sun exposure, however, differ between men and women. A study of cutaneous malignant myeloma in the Italian population recorded the distribution of melanoma by body location for men and for women. Figure 22.10 (below) displays the observed and expected counts for this study and the chi-square test from CrunchIt!

UMP Contingency Analysis of Location By Sex Freq: Count Contingency Table Location Count Row % Expected Cell Chi 2 Head/neck Trunk Upper limbs Lower limbs Unspecified 151 47.78 106.694 18.3989 32 14.16 76.3063 25.7259 183 45 80 14.24 25.32 47.2251 127.683 0.104817.8069 139 15.93 61.50 33.7749 91.3173 0.146624.8982 219 316 34 10.76 27.9852 1.2927 Female 1.90 6.41328 0.0266 Male 36 5226 6.19 20.0148 1.8075 48 2.21 4.58672 0.0372 81 11542 Tests DF 4 -LogLike 47.405283 RSquare (U) 0.0667 542 Test Likelihood Ratio Pearson ChiSquare 94.811 90.245 Prob>ChiSq

Explanation / Answer

Step 1 : Option B is Correct. Yes, expected counts under a null hypothesis satisfy the conditions for using a chi-square test

Step 2: Option D is Correct. The study found a highly significant association between body location and gender

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