Application in Medicine (Biostatistics (biological))

Subject Plan: estimating the prevalence of diabetes, its causes in iran

Sampling in three provinces of Tehran, Zanjan, Kermanshah and in three stages has been done by health workers, physicians specialized Arzyabhavtym respectively according 75,1582,4674 samples has been done. Variables, height, weight, blood pressure, family history of diabetes in diabetic Vsbt characteristics such as appearance (gobbler, Prnvshy, ..) respectively.

Another goal of this project was whether having a characteristic such as these variables from each individual

We can consider that person at risk of diabetes or not?

Questions raised in this project:

 

1 - The prevalence of diabetes in these provinces Sample What's

2 - you can be on this level, prevalence of diabetes than the total estimated Kshvrra?

3 - Whether the prevalence of disease in the provinces of Tehran, Zanjan, Kermanshah is the same (statistical methods)

4 - whether measurements and evaluation of health workers with physicians is the same (statistical methods)

5 - between the variables measured whether detainees are examples relationship (regression and multivariate statistical methods methods)

6 - Not enough choice of samples or their chosen method was accurate?

 

 

Application in Accounting and Finance


Topic: Investigating the relationship between stock prices stock trading volume in the Tehran Stock Exchange

 

Companies between 1374 till 1378 the Tehran Stock Drbvrs were active have been considered and M. Suha, last traded price of the exact exchange their stock is registered chemists.

The stock price changes today than yesterday and today's transaction volume is to Dyrvzsbt.

Assumptions that were important in this research are:

Hypothesis 1: Do stock prices change in the stock exchange is a function of volume?

Hypothesis 2: Do Tghyyrqymt number of times that the shares subject to stock exchange is?

Sample results of 155 companies in the first hypothesis was Vdvm research. In a number of companies

Hypothesis was accepted and in some cases were rejected.

Now the entire companies that are active in the Tehran stock exchange What can be said?

 

 

 

Used in predictions

Electricity consumption, number of passengers, macro planning, ...

Country's total electricity consumption in the years 1351 till 1378 in different tables by regional organizations and the Ministry of Electricity is Nyrvsbt.

Whether we can predict that in the years after 1378 about "how much power is needed in the country?

Each intake per year before the year is all non-measurable variable is therefore likely random distribution.

In trying to discuss the behavior of time series variables in different periods of time as a model when the model is a regular expression that made it the basis of statistical methods is made Vahtmal then we can assume that in later years has established such a model to help It predicted a variable in planning the annual budget Vtyn Bulls Americas since plant construction projects.

 

 

 

Application in educational and humanitarian issues - Psychology

Application in educational and humanitarian issues - Psychology:

 

Marbh widely poll Vazmvnhay people applied psychology.

Questionnaires prepared analysis of the results of their activities is statistically significant.

For a company to determine the satisfaction of its management staff questionnaire included 20 questions is provided in which the comments about the staff salary, working environment, working hours, Rftarmdyran, competent managers and Q is ....

According to the questionnaire questions that some employees have the fill, the employee satisfaction of their collections and what we can do that?

Each share in the definition of what questions will be satisfied?

It is different wards staff satisfaction?

Whether different aspects of job satisfaction of people (financial, work ...) Rami can be separated from each other?

 

 

 

 

Facturing

Application in industry (quality control (

Every product has some features that they can be measured. For example, weight, length, thickness, consistent with international standards and ... . Plant Products in different shifts and different sizes are produced.

It is adjusted to standard production line?

Together they produced the same quality of goods is very good or some Vbzyha very bad! For example, "if product weight should be 2 kg weight Zyadbvdn little or how much is acceptable?

If the swing weight of the product, how many can understand it with statistical methods and decreased?

Examples of the production line should take to explore this issue?

Example: a specific type of tire weight data

 

 

Application of statistics in various management

1 - production and operation: predicting the important part that both qualitative and quantitative, which is done all the statistical distribution is defined.

2 - Financial: Financial data analysis in this section, the effect on the financial variables and item analysis are the variables studied.

3 - system: a complete analysis system using data and analysis variables is performed.

4 - Marketing: Management of organizational behavior, and analyze them to identify different variables

5 - Operations Research: fully relies on science statistics.

 

 

Source: Site www.amar.ir