Nokea
For 95% confidence limit truth is
- A. Reduces 95% confidence of values
- B. 96 of standard error of mean
- C. 56 of standard error of mean
- D. 5% of standard error of mean
Correct Answer: B
Rationale: For 95% confidence limits, approximately 1.96 times the standard error is used.
You may also like to solve these questions
Descriptive epidemiology is essential for 'characterizing the outbreak' by time, place, and person, but has little bearing on the analytic epidemiology.
- A. TRUE
- B. FALSE
Correct Answer: B
Rationale: Descriptive epidemiology informs the development of hypotheses tested in analytic studies.
For the cruise ship scenario, if you suspected ice as a transmission source, how might you display 'place'?
- A. Spot map by assigned dinner seating location
- B. Spot map by cabin
- C. Shaded map of United States by state of residence
- D. Shaded map by whether passenger consumed ship's ice or not
Correct Answer: D
Rationale: Mapping by exposure to ice helps identify potential sources of infection.
In supervision the most appropriate word is
- A. Enforcement
- B. Reinforcement
- C. Suggestion
- D. Inspection
Correct Answer: C
Rationale: Supervision involves providing constructive suggestions and guidance.
Plotted curve usually begins in the lower left corner
- A. Cumulative frequency curve
- B. Survival curve
- C. Both
- D. Neither
Correct Answer: A
Rationale: Cumulative frequency curves start at the lower left corner.
In Pneumoconiosis all are included except
- A. Asbestosis
- B. Silicosis
- C. Anthracosis
- D. Bagasosis
Correct Answer: D
Rationale: Bagasosis is not a type of pneumoconiosis; it is a respiratory condition caused by exposure to sugarcane dust.