ANALYTICS EXAM |VERIFIED |
GUARANTEED 2024\2025
Linear regression - Accurate Answers✔✔In conversations with her
patients, a physical therapist notices that patients who are on Workman's
Compensation and have supportive supervisors, eager for them to return
to work, have more positive outcomes in rehabilitation than those
patients whose supervisors have a negative attitude toward their
employee's injury: insisting they not return to work until they are at
100% because if anything less they are "useless to the job".
What type of test could the therapist use to see if these two factors have
a measurable relationship?
Regression analysis - Accurate Answers✔✔Data analysts at a large
metropolitan hospital need to determine risk factors associated with
readmission within 30 days via the hospital's emergency room among
patients with COPD. The variables of interest include age, gender,
race/ethnicity, insurance status, and family support. Which statistical
technique should be used?
ANOVA - Accurate Answers✔✔Several community health centers
across a rural state are gathering data on their pre-diabetic patients and
using A1c levels as a baseline measurement to include patients in a
research project. Three different interventions will be applied.
,One group of patients will receive a special diet to follow; the second
group will work with physical therapists on a regular exercise program;
the third group will follow the diet and engage in the exercise.
Which statistical test will be appropriate to use to determine which
treatment is most effective in controlling pre-diabetes?
time series - Accurate Answers✔✔A hospital CFO is analyzing the cost
benefits of using the patient reminder system, which was implemented
over a year ago, to see if the automated system results in less missed
appointments ("no-shows").
She is comparing quarterly reports from this past year on volume of
patients who did not show up to their appointments, to the volume of
patients of the previous year, who did not show up to their appointments,
to see if the automated system has proven effective. She is considering
other variables as she reviews the data, but is primarily analyzing the
number of "no-show" patients from last year's quarterly reports to this
year's.
Cross-sectional - Accurate Answers✔✔There are two standard
treatments for children with ADHD who display a specific set of
characteristics. One treatment is a cognitive behavioral intervention, and
the other is a dietary and biomedical intervention. Both treatments have
equally strong clinical evidence supporting their efficacy. A researcher
proposes a comparison of the two interventions to determine which is
preferable. The children will be randomized to one of two groups: half
of the children will receive the cognitive behavioral intervention and the
other half of the children will receive the dietary and biomedical
, intervention. Which test is appropriate to determining the preferable
treatment?
The mean (average) length of stay and
The mean number of providers seeing each patient each day - Accurate
Answers✔✔The vice president, CMO, and Operations Team collected
data on resources used by patients who have undergone coronary bypass
and the length of stays for a defined population of patients who received
CABG surgery. Since the raw data is complex to discuss and evaluate,
the team will use descriptive statistics to analyze the data to support their
decisions for recommendations.
Which of the following descriptive statistics could prove the most
useful?
National Healthcare Survey - Accurate Answers✔✔Operates through
CDC; the National Health Care Surveys are designed to answer key
questions of interest to health care policy makers, public health
professionals, and researchers.
National Center for Health Statistics (NCHS) - Accurate
Answers✔✔Operates through the CDC: data on birth, death, marriages,
divorces, and fetal deaths.
Public Health Databases - Accurate Answers✔✔Incidence and
prevalence of diseases, survival statistics, high-risk populations, trends
over time. Data gathered from medical records, surveys, interviews.
NCHS has responsibility for these databases.