In the method of least squares, the principle is to minimize _____. Select one: a. sum of errors b. product of errors c. sum of squares errors  d. squares of errors

Define the Ordinary Least Squares Estimator OLS Estimates of the Relationship Between Test Scores and the Student–Teacher Ratio?

Consider a class with 80 enrolled students. None of the students were ill at the beginning of the school year. On August 30th, 10 students reported having a common cold. All continued to be ill on September 1st, but all 10 recovered within 3 days. On September 15th, 5 more students had a cold. All of these students continued to be ill on September 16th, but all recovered 5 days later. In this example, assume that a person cannot have a cold more than once.calculate the cumulative incidence of the common cold in the class during the month of september

Please give a detailed answer to the question below.Options For Fill In Blank Answers:.05, .2, .25, and 5elastic or inelastic

1) In the method,two independent variable are assumed to have;   a)Low collinearity   b)High collinearity   c)No collinearity   d)Perfect collinearity   2) If variance of coefficient cannot be applied, we cannot conduct test for;   a) Correlation   b) Determination   c)Significant   d) Residual term

Even if heteroscedaticity is suspected and detected, it is not easy to correct the problem. This statement is  Select one: True  Depends on test statistics  Sometimes true False   if the residuals from a regression estimated using a small sample of data are not normally distributed, which one of the following consequences may arise? Select one: The coefficient estimate will be biased inconsistent The coefficient estimate will be biased consistent Test statistics concerning the parameter will not follow their assumed distributions The coefficient estimate will be unbiased inconsistent   males vs female  young vs adult  married vs unmarried urban resident vs suburban good credit score vs poor credit score The coefficient of determination, r squared  shows     Select one: Proportion on the variation in the dependent variable error term is explained by the independent variable X Proportion of the variation in the dependent variable X is explained by the error term Proportion of the…

According to Chebyshev's theorem, at least what percentage of the observations in a data set will lie within three standard deviations of the mean?

Lactose intolerance causes difficulty digesting dairy products that contain lactose (milk sugar). It is particularly common among people of African and Asian ancestry. In the United States, 82 % of the population is white, 14 % is black, and 4 % is Asian. Moreover, 15 % of whites, 70 % of blacks, and 90 % of Asians are lactose intolerant.. What percent of the entire population is lactose intolerant?

Q. Which of the following is true of heteroscedasticity? Options-  a. Population R-squared is affected by the presence of heteroscedasticity. b. Heteroscedasticity causes inconsistency in the ordinary least squares estimators. c. The ordinary least squares estimators are not the best linear unbiased estimators if heteroscedasticity is present. d. It is not possible to obtain F statistics that are robust to heteroscedasticity of an unknown form.