Homelessness

Homelessness. Statistics

Question 1

 

Select the same social issue (homelessness)in two countries.

 

  1. Collect 8 years of data on the issue from each of the two countries, where appropriate.

homelessness

USAUK
20102335341768
20112314722181
20122313982309
20131956662414
20141753992744
20151732683569
20161763574134
20171928754751

 

 

 

  1. Compute the following descriptive statistics for the data collected:

 

Column1Column1
Mean201246.1252983.75
Standard Error9483.799513371.978386
Median194270.52579
Mode#N/A#N/A
Standard Deviation26824.235791052.113757
Sample Variance719539625.61106943.357
Kurtosis-2.120851185-0.832156376
Skewness0.3290230810.723153076
Range602662983
Minimum1732681768
Maximum2335344751
Sum160996923870
Count88

 

 

 

Descriptive Statistics

 

USA

(Variable X)

UK

(Variable Y)

   
i)       Mean201246.1252983.75
   
ii)     Standard Deviation26824.235791052.113757
   
iii)   Coefficient of Variation0.1332910.352615
   
iv)   Covariance (between X and Y)  
v)      Coefficient of correlation (between X and Y)  

 

           

 

  1. Justify in which country the social issue is more serious, based on the data themselves and, where appropriate, the numerical descriptive statistics in b).

(2 marks)

Answer:

 

Country:____________________________________

 

Reason:_____________________________________

 

  1. Justify whether the social issue, based on the data themselves and, where appropriate, the numerical descriptive statistics in b), is a common phenomenon (viz. correlated) between the two countries.

 

Justification:_________________________________

 

  1. Imagine you are the prime minister of one of the two countries.

 

Justify or “lie” that the social issue had improved under your administration, with

 

  1. An appropriate graphical method (e.g. bar chart; histogram; line chart) and its interpretations

 

  1. The data themselves and, where appropriate, the numerical descriptive statistics in b) and their interpretations.

 

Answer

 

  1. i) Justify / “lie” with the graphical presentation of data:

 

___________________________________

 

  1. ii) Justify / “lie” with the data themselves and, where appropriate, the numerical descriptive statistics in b). You might like to further support your answer with qualitative considerations like government policies implemented, changes in population and social demographics, and alike:

 

___________________________________

 

  1. Select one of the two countries, and suggest a plausible factor that, in the Group’s opinion, has contributed most to the social issue.

 

Explain the causation between the social issue and the factor the Group has suggested.

 

Answer

 

  1. Factor:

 

___________________________________

 

  1. Explanation of the causation:

 

___________________________________

 

 

  1. Imagine you are the president of the HumanRightsCommission of United Nations.

 

You would like to test whether the claimby the President is supported by evidence.

 

Set up  and to test the claim.

Note: µ is the unknown and hence assumed parameter mean for Variable X or Y.

 

Answer

 

  1. (in the form of  : µ = a numerical value which you need to justify from the data collected)

 

:  µ = ?

 

President’s claim (he / she had done a good, average or bad job in mitigating the social issue):

 

_________________________________________

 

Justification of the numerical value of µ: ________

 

 

  1. (in the form of :  µ ≠, > or <  the numerical value in )

 

:  µ =, ≠, > or <?

 

Justification of the choice of ≠, > or <:________

 

 

 

Question 2

 

What is the most important lesson you have learnt in presenting and interpreting statistical data from undertaking the assignment, especially e)?  Please explain.

 

Answer

 

  1. Lesson:

 

___________________________________________

 

  1. Explanation:

 

____________________________________________

 

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