1) A regression model that involves a single independent variable is called ________.
A) single linear regression
B) simple unit regression
C) simple linear regression
D) individual linear regression
1) A regression model that involves a single independent variable is called ________. A) single linear...
2. Consider a simple linear regression model for a response variable Yi, a single predictor variable ri, i-1,... , n, and having Gaussian (i.e. normally distributed) errors Ý,-BzitEj, Ejį.i.d. N(0, σ2) This model is often called "regression through the origin" since E(Yi) 0 if xi 0 (a) Write down the likelihood function for the parameters β and σ2 (b) Find the MLEs for β and σ2, explicitly showing that they are unique maximizers of the likelihood function. (Hint: The function...
6. This problem considers the simple linear regression model, that is, a model with a single covariate r that has a linear relationship with a response y. This simple linear regression model is y = Bo + Bix +, where Bo and Bi are unknown constants, and a random error has normal distribution with mean 0 and unknown variance o' The covariate a is often controlled by data analyst and measured with negligible error, while y is a random variable....
In the simple linear regression model, the ____________ accounts for the variability in the dependent variable that cannot be explained by the linear relationship between the variables. a. constant term b. residual c. model parameter d. error term
An assumption of the simple linear regression model is... (a) (b) (c) (d) that only the dependent variable is random that only the independent variable is random that both the dependent and independent variables are random that dependent and independent variables are not random
QUESTION 13 For a simple linear regression model, the estimated intercept is 5, and the estimated slope is -3, it implies that as the independent variable increases by 1 unit, the dependent variable would increase by 5 units. as the independent variable increases by 1 unit, the dependent variable would decrease by 3 units. as the dependent variable increases by 1 unit, the independent variable would increase by 5 units. as the dependent variable increases by 1 unit, the independent...
In the simple linear regression equation, (y a+ bx+ e), the a is the... O A. independent variable O B. slope of the fitted line C. dependent variable O D.y-intercept Reset Selection Question 2 of 5 1.0 Points In the simple linear regression equation, (y a+bx+ e) the y is the O A. independent variable O B. dependent variable O C. slope of the fitted line D. y-intercept Question 3 of 5 1.0 Points The R2 for a regression model...
1. In simple linear regression analysis, we assume that the variance of the independent variable (X) is equal to the variance of the dependent variable (Y) True False 2. The standard deviation of the sampling distribution of the sample mean is the same as the population standard deviation. True False 3. If n=20 and p=.4, then the mean of the binomial distribution is 8 True False 4. If a population is known to be normally distributed, then it follows that...
Q9. In a simple linear regression model, the slope term is the change in the mean value of y associated with _____________ in x. A) a corresponding increase B) a variable change C) no change D) a one-unit increase
A linear regression model found the following : Dependent variable : Quantity Independent variables : X1 X2 coefficient constant. 10 price. -2 Income. 3 R^2 = 0.83 t = 2.36 a. write the demand function as an equation b. do the sign of the coefficients make sense ? why? c. if price = 10, Income = 24 what is the predicted quantity sold? d. find the point price elasticity at price =10, Income = 24