Statistical inference is the process of drawing conclusions about a population based on sample data.
Econometrıcs I (ENG) — Ünite 1 Soru-Cevap
Econometrıcs I (ENG) (IKT325U) soru-cevapları.
What is the process of drawing conclusions about a population based on sample data called?
What are the three disciplines on which economic theory is built?
Economic theory, mathematics, and statistics are the three disciplines on which econometrics is built.
What are the 3 fundamental aims of econometrics?
Econometrics has 3 fundamental aims:
- Formulation of econometric models
- Estimation and testing of these models with observed data.
- Use of these models for prediction and policy purposes.
What are the three sub-stages in establishing the mathematical model, which is one of the most important steps of econometric research?
First, the variables characterizing the event under consideration are determined.This stage is identifying the variables. Then, the direction of the relationship between these variables is determined.This secod stage is identifying the expected signs of the coefficients. Finally, the mathematical pattern that best represents the relationship between the variables is chosen.The last stage is choosing the functional form.
"The relationship is referred to as exact or deterministic in the absence of the disturbance term and ................ in the presence of the disturbance term."
Which statement completes the sentence in above correctly?
"The relationship is referred to as exact or deterministic in the absence of the disturbance term and stochastic in the presence of the disturbance term."
"............................. is used to represent explicitly the size of these errors."
Which statement completes the sentence in above correctly?
"The disturbance term is used to represent explicitly the size of these errors."
What is a statistical method used to investigate the relationship between a dependent variable and one or moreindependent variables?
Regression analysis is a statistical method used to investigate the relationship between a dependent variable (also known as the explained variable) and one or more independent variables (also known as the explanatory variables).
Estimating and testing of the models with observed data constitutes which aspect of econometric work?
Estimation and testing of the models with observed data constitutes the inference aspect of the econometric work.
What are the two main types of statistical inference?
There are two main types of statistical inference: Estimation and hypothesis testing.
What is the difference between the forecast value and the actual value is called?
The difference between the forecast value and the actual value is called the forecast error.
For which three main purposes is the estimated econometric model used?
The estimated econometric model is used for three main purposes. These are:
• Structural analysis
• Policy formulation
• Forecasting
What are the types of observational data used in economic analysis?
Experimental data and Observational data are the two main types of data that can be used in economic analysis. Observational data, consists of four types: time series data, cross sectional data, pooled data, and panel data.
".......................... in a time series refers to a regular and repeating pattern that occurs in the data at fixed intervals over time."
Which statement completes the sentence in above correctly?
A seasonal pattern in a time series refers to a regular and repeating pattern that occurs in the data at fixed intervals over time.
"................ refers to data collected at a specific point in time, typically from a sample or population."
Which statement completes the sentence in above correctly?
Cross-sectional data refers to data collected at a specific point in time, typically from a sample or population.
What is a type of research design that combines cross-sectional data from multiple time periods?
A pooled cross section is a type of research design that combines cross-sectional data from multiple time periods.
"................. refers to the relationship between two or more variables where one variable (the cause) influences the outcome or behavior of the other variable (the effect)."
Which statement completes the sentence in above correctly?
Causality refers to the relationship between two or more variables where one variable (the cause) influences the outcome or behavior of the other variable (the effect)
What does causal inference involve?
Causal inference involves determining whether a particular variable has a causal effect on another variable while controlling for other factors that may also influence the outcome.
"................. measures this strength of linear association."
Which statement completes the sentence in above correctly?
The correlation coefficient measures this strength of linear association.
What is the primary objective of the correlation analysis?
The primary objective of the correlation analysis is to measure the strength or degree of linear association between two variables.
In which analysis we try to estimate or predict the average value of one variable on the basis of the fixed values of other variables?
In the correlation analysis, the primary objective is to measure the strength or degree of linear association between two variables, but in the regression analysis we try to estimate or predict the average value of one variable on the basis of the fixed values of other variables.