BUAL 5380 LATEST COMPREHENSIVE QUESTIONS
AND ANSWERS SURE A+
✔✔standard error of bi - ✔✔In the standardized value (bi-Bi)l Sbi, the symbol Sbi
represents the
✔✔Forward, backward, and stepwise - ✔✔Many statistical packages have 3 types of
equation-building procedures. They are:
✔✔Homoscedasticity - ✔✔Another term for constant error variance is:
✔✔The F-statistic - ✔✔The test statistic in an ANOVA analysis is:
✔✔The standard deviation of the response variable increases as the explanatory
variables increase - ✔✔Which of the following is NOT one of the assumptions of
regression?
✔✔Delete it - ✔✔If you can determine that the outlier is not really a member of the
relevant population, then it is appropriate and probably best to:
✔✔Population - ✔✔Includes all of the entities of interest: people, households,
machines, etc.
, ✔✔Sample - ✔✔subset of the population
✔✔Numerical data - ✔✔a variable that math can be performed on.
✔✔categorical data - ✔✔a variable that math cannot be performed on
✔✔Ordinal variable - ✔✔When there is a natural ordering of categories, the variable is
classified as a ____________
✔✔Nominal - ✔✔When there is no natural ordering of its possible categories, the
variable is ______
✔✔Time series data - ✔✔When data is collected over time instead of just one point in
time
✔✔mean - ✔✔average of all values
✔✔Discrete - ✔✔a numerical value is _____ if it results from a count, such as the
number of children.
✔✔Continuous - ✔✔a numerical value is ____ if it is the result of an essentially
continuous measurement such as height or weight.
✔✔Frequency - ✔✔a _______ table contains counts of observations in specified
categories.
✔✔variance - ✔✔the _____ is essentially the average of the squared deviations from
the mean.
✔✔range - ✔✔the maximum value minus the minimum value
✔✔Empirical rules - ✔✔The first of these includes 68% of all values, the second
includes 95%, and the third includes 99.7%.
✔✔Crosstabs - ✔✔Use a _____, a table of counts of joint categories, to discover
relationships between two categorical variables
✔✔correlation coefficient - ✔✔a statistical measure of the strength of a linear
relationship between two variables. Its values can range from -1 to 1.
✔✔covariance coefficient - ✔✔tells whether both variables vary in the same direction
(positive) or in the opposite direction (negative).
AND ANSWERS SURE A+
✔✔standard error of bi - ✔✔In the standardized value (bi-Bi)l Sbi, the symbol Sbi
represents the
✔✔Forward, backward, and stepwise - ✔✔Many statistical packages have 3 types of
equation-building procedures. They are:
✔✔Homoscedasticity - ✔✔Another term for constant error variance is:
✔✔The F-statistic - ✔✔The test statistic in an ANOVA analysis is:
✔✔The standard deviation of the response variable increases as the explanatory
variables increase - ✔✔Which of the following is NOT one of the assumptions of
regression?
✔✔Delete it - ✔✔If you can determine that the outlier is not really a member of the
relevant population, then it is appropriate and probably best to:
✔✔Population - ✔✔Includes all of the entities of interest: people, households,
machines, etc.
, ✔✔Sample - ✔✔subset of the population
✔✔Numerical data - ✔✔a variable that math can be performed on.
✔✔categorical data - ✔✔a variable that math cannot be performed on
✔✔Ordinal variable - ✔✔When there is a natural ordering of categories, the variable is
classified as a ____________
✔✔Nominal - ✔✔When there is no natural ordering of its possible categories, the
variable is ______
✔✔Time series data - ✔✔When data is collected over time instead of just one point in
time
✔✔mean - ✔✔average of all values
✔✔Discrete - ✔✔a numerical value is _____ if it results from a count, such as the
number of children.
✔✔Continuous - ✔✔a numerical value is ____ if it is the result of an essentially
continuous measurement such as height or weight.
✔✔Frequency - ✔✔a _______ table contains counts of observations in specified
categories.
✔✔variance - ✔✔the _____ is essentially the average of the squared deviations from
the mean.
✔✔range - ✔✔the maximum value minus the minimum value
✔✔Empirical rules - ✔✔The first of these includes 68% of all values, the second
includes 95%, and the third includes 99.7%.
✔✔Crosstabs - ✔✔Use a _____, a table of counts of joint categories, to discover
relationships between two categorical variables
✔✔correlation coefficient - ✔✔a statistical measure of the strength of a linear
relationship between two variables. Its values can range from -1 to 1.
✔✔covariance coefficient - ✔✔tells whether both variables vary in the same direction
(positive) or in the opposite direction (negative).
