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Control №1 and 2 Statistics
Uploaded: 11.08.2013
Content: 30811185317160.rar 197,39 kB
Product description
Verification work №1
Task №1
According to Annex 1 to examine the relationship between the factor and efficient features make analytical group at regular intervals.
For each group and calculate the population of enterprises:
1) number of enterprises;
2) the proportion of Group companies (% of total);
3) the factor variable - Group total and average per enterprise;
4) the amount of resultant variable - Group total and average per enterprise.
The results present in the statistical table.
According to a number of distribution companies build a histogram and polygon distribution.
Draw conclusions.
Task №2
According to research group (see para. 1 job) factorial basis calculate:
1) The mean value
a) the simple arithmetic;
b) the weighted arithmetic;
What is the result of more accurate and why?
2) mode and median.
Calculated on the graph show the average.
According to the obtained values \u200b\u200bof the middle to draw conclusions about the distribution companies factorial basis.
Task №3
According to research group (see para. 1 job) factorial basis calculate performance variations:
1) the scope of variation;
2) the average linear deviation;
3) dispersion
4) standard deviation;
5) the coefficient of variation.
Draw conclusions.
Task №4
Calculate the probability 0.997 extent to which the factor is the mean value and effective sign if the available data on 25 companies received as a result of a 5% sampling without replacement of mechanical sample survey.
What should be the size of the sample to an error margin of factorial basis decreased by 10%.
Setting №5
To study the relationship between the factor and productive according to the 25 signs of the enterprises do the following:
1) build on these indicators a number of parallel data; determine if communication graphically pair connection between factorial and productive traits;
2) Select the coupling equation and calculate the parameters of the regression equation; calculate on the basis of its theoretical values \u200b\u200bof resultant variable and apply these values \u200b\u200bon a graph constructed in claim 1. Give an economic interpretation of the equation of communication;
3) calculate the coefficient of elasticity, to draw conclusions;
4) calculate the pair linear correlation coefficient between the studied communication features. Draw conclusions;
5) all of the intermediate calculations are present in the table.
Task №6
According to Annex 2 (the column "Volume of import, t"):
1) graphically the dynamics of the series using statistical curve;
2) Calculate the chain and basic absolute, relative performance indicators (absolute growth, growth rate, growth rate, the absolute value of one percent growth); Present the results of calculations in tabular form; specify conclusions regarding the main trends of development of the phenomenon under study.
3)
Task №7
According to your version of Annex №2 January and the month of May, calculate:
1) The individual price indices;
2) The index value and volume of imports of goods;
3) check the correctness of calculations using the relationship codes.
Draw conclusions.
Verification work №2
Option 10
By country data are available for two adjacent years (see table).
Indicators 2006 2007
The population aged 15-72 years, th. Pers 3810 3870
The level of economic activity of the population% of the population aged 15-72 years 69
Employment rate,% 53 55
Employment rate,% of the economically active population
The unemployment rate, ILO definition, 10.0%
The economically active population, thousand. People
Arte worked part-time working week, thousands. 62 pers
The level of potential unemployment,% of economically active population 13.2
We have 1000 employees jobless
Fill in the missing data in the table and evaluate changes in the conditions of emplo
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