Question

$10\mathrm{.}2$ Identifying Good System Administrators. A management consultant is studying the roles played by experience and training in a system administrator's ability to complete a set of tasks in a specified amount of time. In particular, she is interested in discriminating between administrators who are able to complete given tasks within a specified time and those who are not. Data are collected on the performance of $75$ randomly selected administrators. They are stored in the file SystemAdministrators.csv $.$

$14$

Multiple Answer

$4\mathrm{.}8$ points

Which of the following variables are significant influencers on whether the administrator completed the task? $($Select all that apply.$)$

The variable Experience measures months of full$-$time system administrator experience, while Training measures the number of relevant training credits. The outcome variable Completed is either Yes or No$,$ according to whether or not the administrator completed the tasks.

Run a logistic regression model with:

Completed.task as the dependent variable

And Experience and Training as the independent variables.

Use the following code for your logistic re$$ession model.

admin.logit glm$($Completed$.$task Experience $+$ Training, data$=$admin.df$,$ family$=$binomial$)$

Experience

Training

None of the above are significant influencers.

$15$

Numeric $4\mathrm{.}7$ points

What is the coefficient $($estimate$)$ of the Experience variable $($with $2$ decimal places$)?$

Type your answer...

$16$

Numeric $4\mathrm{.}8$ points

What is the coefficient $($estimate$)$ of the Training variable $($with $2$ decimal places$)?$

Type your answer...