It is of clinical interest to know if the duration of hospitalization is affected by whether a patient has received antibiotics. Answer this question descriptively using either numeric or graphic methods.

Table 2.13: Hospital-stay data

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First WBC Received Duration First Received bacterial Sex 1 = M 2 = F (x 10°) following admission antibiotic? culture? Service 1 = med. 2 = surg. of temp. following 1 = yes 2 = no 1 = yes ID hospital stay Age admission 2 = no no. 99.0 5 30 10 73 98.0 6 40 99.0 12 2 47 4 11 98.2 4 2 5 25 98.5 11 2 82 14 1 96.8 60 30 99.5 11 56 98.6 7 17 43 2 98.0 50 10 98.0 12 97.6 11 59 7 2 12 3 4 97.8 3 13 22 2 99.5 11 2 98.4 14 33 14 98.4 15 20 2 11 32 99.0 16 17 36 99.2 18 4 69 98.0 2 47 19 3 97.0 20 22 98.2 2 98.2 21 11 10 2 98.6 22 11 19 1 14 2 2 97.6 23 11 67 4 2 2 24 43 2 98.6 5 2 2 25 4 41 2 98.0 5 2 0 0 5 57