BANA 2372 HOLLANDER FINAL EXAM FINAL
PAPER 2026 COMPLETE QUESTIONS
SOLUTIONS GRADED A+
◉ Age is significant at a .05 level of significance. Answer: true
◉ Blood Pressure is significant at a .01 level of significance. Answer:
true
◉ The dummy variable for Smoker is significant at .005 level of
significance.. Answer: false
◉ What is the probability of a stroke over the next 10 years for Art
Speen, a 68-year-old smoker who has a systolic blood pressure of
175? Enter your answer as percent with one decimal place.. Answer:
34.3
◉ _____________ refers to the scenario in which the relationship
between the dependent variable and one independent variable is
different at different values of a second independent variable..
Answer: interaction
, ◉ Fitting a model too closely to sample data, resulting in a model
that does not accurately reflect the population is termed as. Answer:
overfitting
◉ Assessing the regression model on data other than the sample
data that was used to generate the model is known as. Answer:
cross-validation
◉ __________ is the data set used to build the candidate models.
Answer: training set
◉ _____________ refers to the data set used to compare model forecasts
and ultimately pick a model for predicting values of the dependent
variable.. Answer: validation set
◉ A variable used to model the effect of categorical independent
variables in a regression model which generally takes only the value
zero or one is called. Answer: dummy variable
◉ Which of the following regression models is used to model a
nonlinear relationship between the independent and dependent
variables by including the independent variable and the square of
the independent variable in the model?. Answer: quadratic
regression model
PAPER 2026 COMPLETE QUESTIONS
SOLUTIONS GRADED A+
◉ Age is significant at a .05 level of significance. Answer: true
◉ Blood Pressure is significant at a .01 level of significance. Answer:
true
◉ The dummy variable for Smoker is significant at .005 level of
significance.. Answer: false
◉ What is the probability of a stroke over the next 10 years for Art
Speen, a 68-year-old smoker who has a systolic blood pressure of
175? Enter your answer as percent with one decimal place.. Answer:
34.3
◉ _____________ refers to the scenario in which the relationship
between the dependent variable and one independent variable is
different at different values of a second independent variable..
Answer: interaction
, ◉ Fitting a model too closely to sample data, resulting in a model
that does not accurately reflect the population is termed as. Answer:
overfitting
◉ Assessing the regression model on data other than the sample
data that was used to generate the model is known as. Answer:
cross-validation
◉ __________ is the data set used to build the candidate models.
Answer: training set
◉ _____________ refers to the data set used to compare model forecasts
and ultimately pick a model for predicting values of the dependent
variable.. Answer: validation set
◉ A variable used to model the effect of categorical independent
variables in a regression model which generally takes only the value
zero or one is called. Answer: dummy variable
◉ Which of the following regression models is used to model a
nonlinear relationship between the independent and dependent
variables by including the independent variable and the square of
the independent variable in the model?. Answer: quadratic
regression model
