C207 Data-Driven Decision Making Practice Questions - Set 5 - Part 1

Test your knowledge of data-driven decision making concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 1: What type of study counts only new cases of a disease?

a) Prevalence study

b) Incidence study

c) Cross-sectional study

d) Experimental study

Question 2: What does cumulative incidence measure?

a) The total number of cases in a population

b) The percentage of new cases over a particular time compared to the population

c) The number of recovered cases in a specific period

d) The prevalence of a disease

Question 3: A ratio measures:

a) The difference between two values

b) One quantity in relation to another

c) The sum of all values

d) The number of groups in a sample

Question 4: In epidemiology, prevalence is used to count:

a) All existing cases of a disease

b) New cases of a disease

c) Deaths caused by a disease

d) Cases with specific risk factors

Question 5: Which of the following is an example of a criterion-referenced test?

a) Comparing one student’s test scores to the class average

b) Determining if a medical student can perform an appendectomy before passing the course

c) Ranking employees by their performance reviews

d) Measuring the likelihood of a person developing a disease

Question 6: A weighted composite index:

a) Gives more importance to certain goods or services

b) Considers all data points equally

c) Is only used for economic data

d) Measures customer satisfaction

Question 7: What is the purpose of a simple composite index?

a) To assess a single variable over time

b) To combine data from multiple items, without assigning more weight to any item

c) To measure the correlation between two variables

d) To analyze categorical data

Question 8: What is a cost-benefit analysis used for?

a) To compare employee performance

b) To determine if the benefits of a project outweigh its costs

c) To assess risk factors in epidemiology

d) To calculate the return on investment for stocks

Question 9: The payback period refers to:

a) The time required to recover the money invested in a project

b) The duration of a loan

c) The time it takes for a project to be completed

d) The period during which profits are maximized

Question 10: Which of the following is an example of an index number?

a) Consumer Price Index (CPI)

b) Z-score

c) P-value

d) Mean

Question 11: Incidence is typically expressed as:

a) A percentage of the total population

b) The ratio of new cases to existing cases

c) The total number of cases in a population

d) A proportion of new cases over a specific time period

Question 12: A simple index number compares:

a) The change in price or quantity of a single item over time

b) The relationship between two different variables

c) The total values of multiple variables

d) The impact of qualitative data on quantitative outcomes

Question 13: The expected value of an alternative is:

a) The maximum possible payoff

b) The sum of all possible payoffs, each weighted by the probability of occurring

c) The minimum possible payoff

d) The average payoff across all alternatives

Question 14: What is the difference between incidence and prevalence?

a) Incidence measures all cases, while prevalence counts only new cases

b) Incidence counts only new cases, while prevalence measures all existing cases

c) Prevalence focuses on future predictions, while incidence tracks past cases

d) Prevalence only applies to chronic diseases

Question 15: What does a consumer price index (CPI) track?

a) The changes in household income

b) The total economic output of a country

c) The price changes of a basket of consumer goods

d) The unemployment rate over time

Question 16: A permutation is:

a) The number of different ordered possibilities for a certain situation

b) The total number of data points in a dataset

c) The ratio of independent variables to dependent variables

d) The combination of unordered possibilities

Question 17: What does a confidence interval represent in statistics?

a) The spread of a dataset

b) The likelihood of a null hypothesis being true

c) An estimate of the range within which a population parameter lies

d) The median of a sample

Question 18: The term "null hypothesis" is best defined as:

a) A statement predicting the relationship between variables

b) A hypothesis stating there is no effect or no difference between groups

c) A prediction of future outcomes

d) An assumption based on historical data

Question 19: What is the main purpose of a test statistic?

a) To summarize the characteristics of a dataset

b) To calculate the average value of a sample

c) To determine whether to reject the null hypothesis

d) To track performance over time

Question 20: A scatter diagram is used to:

a) Display time-series data

b) Show the relationship between two continuous variables

c) Track performance measurements over time

d) Test the significance of a dataset

Need Guaranteed Results?

Don't want to study? Our exam support service guarantees you'll pass your OA on the first attempt. Pay only after you pass!

Get Exam Support