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Submitted by indigo11 on Thu, 2013-11-07 13:10
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QMB 6357 Harvard final exam practice

. The median is often a better representative of the central value of a data set when the data set:

Source

            
Is bimodal.

            
Has a high standard deviation.

            
Is highly skewed.





2. The data in the Excel spreadsheet linked below provide information on the nutritional content (in grams per serving) of some leading breakfast cereals. 

For which nutrients is the mean nutrient content per serving greater than the median nutrient content per serving?

Breakfast Cereals

Source

            
Proteins only.

            
Complex carbohydrates only.

            
Both nutrients.

    Neither nutrient.
Has no outliers.



 3   The histogram below plots the carbon monoxide (CO) emissions (in pounds/minute) of 40 different airplane models at take-off. 

The distribution is best described as is:

Source

 

            
Uniform.

            
Heteroskedastic.

            
Normal.

    
Skewed right.





4.

4. The histogram below plots the carbon monoxide (CO) emissions (in pounds/minute) of 40 different airplane models at take-off. 

Which of the following statements is the best inference that can be drawn from this histogram?

Source

 

            
The mean amount of carbon monoxide emissions is greater than the median amount of carbon monoxide emissions.

            
The mean amount of carbon monoxide emissions is less than the median amount of carbon monoxide emissions.

            
The mean and median amounts of carbon monoxide emissions are about equal.

    The relative sizes of the mean and median amounts of carbon monoxide emissions cannot be inferred from the histogram

and other quest

Answer
Submitted by indigo11 on Thu, 2013-11-07 13:10
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QMB 6357 Harvard final exam practice

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QMB xxxx xxxxxxx xxxxx exam practice

file1.docx preview (3815 words)

xx

1. xxx xxxxxx is often x xxxxxx xxxxxxxxxxxxxx of xxx xxxxxxx value of x xxxx set xxxx the xxxx set:Top of Form

xx xxxxxxxx

Has a xxxx standard xxxxxxxxxx

xx xxxxxx skewed.

xxx no outliers. Bottom of Form

xx The xxxx xx the xxxxx spreadsheet linked below provide xxxxxxxxxxx xx the xxxxxxxxxxx content (in xxxxx xxx xxxxxxxx of xxxx xxxxxxx xxxxxxxxx cereals. xxx which xxxxxxxxx is the xxxx xxxxxxxx content per serving xxxxxxx xxxx the median nutrient content xxx xxxxxxxx

Top of Form

A) Proteins only.

xx xxxxxxx carbohydrates only.

xx Both xxxxxxxxxx

xx Neither nutrient.

xx xxx histogram xxxxx plots xxx xxxxxx monoxide (CO) xxxxxxxxx (in xxxxxxxxxxxxxx of xx different airplane xxxxxx xx xxxxxxxxx

The xxxxxxxxxxxx xx best xxxxxxxxx as xxxx

xxx xx Form

Uniform.

Heteroskedastic.

Normal.

xxxxxx right

xx The histogram above plots the carbon xxxxxxxx (CO) xxxxxxxxx xxx pounds/minute) of 40 xxxxxxxxx xxxxxxxx xxxxxx at xxxxxxxxx xxxxx xx xxx following xxxxxxxxxx xx xxx

- - - more text follows - - -


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