The coefficient of determination ____________________ for degrees of freedom takes into account the sample size and the number of independent variables when assessing model fit.
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Q. 2The smallest number in a confidence interval is abbreviated by ____________________.
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Q. 3Multiple regression has four requirements for the error variable. One is that the probability distribution of the error variable is ____________________.
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Q. 4In the formula for a confidence interval for , 1 - is called the ____________________.
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Q. 5In a multiple regression model, the value of the coefficient of determination has to fall between
a. -1 and +1 c. -1 and 0.
b. 0 and +1 d. None of these choices.
Q. 6The confidence ____________________ is the chance that the interval contains the parameter, over repeated sampling.
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Q. 7In a multiple regression analysis, there are 20 data points and 4 independent variables, and the sum of the squared differences between observed and predicted values of y is 180 . The standard error of estimate will be:
a. 9.000 c. 3.464
b. 6.708 d. 3.000
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