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Mathematics 8 Online
OpenStudy (anonymous):

For 1 month, two doctors in a medical office counted the number of patients they saw each day. The mean and MAD for each doctor were calculated and recorded in a table. What conclusion can be drawn, based upon the value of the means-to-MAD ratio? Doctor Mean MAD Hartmann 15.3 0.9 Kim 18.9 1.1 A. Dr. Hartmann saw more patients per day than Dr. Kim did. B. Dr. Kim saw more patients per day than Dr. Hartmann did. C. Dr. Kim and Dr. Hartmann saw about the same number of patients per day. D. No conclusions can be drawn.

OpenStudy (anonymous):

C?

OpenStudy (anonymous):

@jim_thompson5910 @pooja195

OpenStudy (anonymous):

@satellite73

OpenStudy (anonymous):

@sammixboo

OpenStudy (anonymous):

@triciaal

jimthompson5910 (jim_thompson5910):

what numeric value did you get for the means-to-MAD ratio ?

OpenStudy (anonymous):

umm sec xD

OpenStudy (anonymous):

17?

jimthompson5910 (jim_thompson5910):

subtract the means then divide that difference by the larger MAD value

OpenStudy (anonymous):

3.272727273

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

The MAD Is 3.272727273 @jim_thompson5910

jimthompson5910 (jim_thompson5910):

good

jimthompson5910 (jim_thompson5910):

if the ratio is larger than 2.5, which it is, this means that the distributions are different so that rules out choice C. If they were similar distributions, then choice C would be the answer

OpenStudy (anonymous):

B?

jimthompson5910 (jim_thompson5910):

which one? A or B?

OpenStudy (anonymous):

B

jimthompson5910 (jim_thompson5910):

why?

OpenStudy (anonymous):

Because The mean is Greater for Kim and so is the MAD.

OpenStudy (anonymous):

xD

OpenStudy (anonymous):

Btw I suck at Guessing

jimthompson5910 (jim_thompson5910):

yeah the mean is larger for Kim so she takes on more patients

jimthompson5910 (jim_thompson5910):

well don't guess, all of the info you need is given

OpenStudy (anonymous):

Yeh i kinda knew but didnt know 100%

OpenStudy (anonymous):

so it is B?

jimthompson5910 (jim_thompson5910):

yeah

OpenStudy (anonymous):

:) thanks Fan/Medal

jimthompson5910 (jim_thompson5910):

yw

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