Public health officials recently measured the wait time at a local emergency roo

Question

Public health officials recently measured the wait time at a local emergency room before (left) and after (right) a major reorganization in management. Histogram of Minutes Normal 0 40 80 120 160 200 240 280 30 Min Target SF-ER-MS-1B SF-ER-MS-2A 35 30 25 a 20 15 10 SF-ER-MS-1B Mean 62.66 StDev 33.15 96 SF-ER-MS-2A Mean 71.19 StDe 42.54 98 0 30 Min 0 40 80 120 160 200 240 280Targe Minutes Panel var iable: Hospital_1 Using the Side-by-Side Histograms above, determine which distribution has a higher IQR Before Group; its mean is lower After Group; its mean is higher After Group; its standard deviation is higher Before Group; its standard deviation is lower

Explanation / Answer

IQR= (Q3-Q1)/2

if variance is more then spred of the data is more. it means (Q3-Q1) is more .so IQR is more.hence

option C is correct.( after group its S.D. is higher)

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