Which of the following conditions is not necessary for ordinary least squares to be the best unbiased linear estimator (BLUE)?
The Ordinary Least Squares (OLS) method is used to estimate the parameters in a linear regression model. For the OLS estimator to be the Best Linear Unbiased Estimator (BLUE), it must satisfy the Gauss-Markov assumptions. These assumptions are: 1. Linearity : The relationship between the independent variables and the dependent variable is linear. 2. Random Sampling : The data is obtained through a random sample of the population. 3. No Perfect Multicollinearity : There is no perfect multicollinearity between the independent variables. 4. Zero Conditional Mean : The errors have an expectation of zero given any value of the independent variables. 5. Homoscedasticity : The errors have constant variance (σ2). 6. No Autocorrelation : The errors are uncorrelated with each other. Given these assumptions, the condition that is not necessary for OLS to be BLUE is: (a) All errors are normally distributed Normality of the errors is not required for the OLS estimator to be BLUE according to the Gauss-Markov theorem. Normality is only necessary if we want to make specific inference statements (like t-tests and F-tests) or for the errors to follow a normal distribution.
What was the purpose of the 'Fisheries Summer Meet 2024' organized in Madurai, Tamil Nadu?
Under the Nasha Mukt Bharat Abhiyaan, what is the specific focus area mentioned in the MoU between the Department of Social Justice and Empowerment and ...
Who recently won the ‘Leon Masters Chess Championship’ for the 10th time?
Narendra Modi recently took oath as Prime Minister for the third consecutive term. Which of the following statements is NOT true about his new Cabinet?
Which bank has launched 'Mobile Handheld Devices for its financial inclusion customers in a bid to enhance accessibility and convenience & will provide ...
Baghmara Pitcher Plant Sanctuary is located in which of the following states?
Who is the author of the book “Public Service Ethics - A Quest for Naitik Bharat”?
Why is the launch of the vessel Costa Serena significant in India?
According to Australia-based think tank Lowy Institute's 2023 Asia Power Index,which country holds the most power in Asia?
The US is going to donate 2.2 million doses of pediatric vaccines to which country?