Data Analysis is the process of cleansing, inspecting and modelling the data. The goal is to discover useful information, inform conclusions and support the decision making.
Question 1: Data Analysis has how many main statistical methodologies?
A) 1
B) 2
C) 3
D) 4
Answer: 2
Explanation: There are following 2 main statistical methodologies in Data Analysis:
Inferential Analysis
Descriptive Analysis
Question 2: Research Hypothesis is also known as?
A) Simple Hypothesis
B) Composite Hypothesis
C) Alternative Hypothesis
D) None of these
Answer: Alternative Hypothesis
Explanation: Research Hypothesis is also known as Alternative Hypothesis.
Question 3: Which of the following will be accepted in case Null Hypothesis is false?
A) Positive Hypothesis
B) Negative Hypothesis
C) Alternative Hypothesis
D) None of these
Answer: Alternative Hypothesis
Explanation: Alternative Hypothesis will be accepted in case Null Hypothesis is false.
Question 4: In order to test a hypothesis, which distribution can be used?
A) Gamma Distribution
B) Normal Distribution
C) Poisson Distribution
D) Chi-Squared Distribution
Answer: Chi-Squared Distribution
Explanation: In order to test a hypothesis, Chi-Squared distribution can be used
Question 5: In the Z Score formula, the denominator is?
A) Standard Deviation
B) Difference between a mean and the score
C) Range
D) None of these
Answer: Standard Deviation
Explanation: In the Z Score formula, the denominator is Standard Deviation.
Z Score formula = (observed value - mean) / standard deviation
Question 6: Which of the following are the building block of qualitative data
A) Units
B) Categories
C) Groups
D) None of these
Answer: None of these
Explanation: Categories are the building blocks of qualitative data.
Question 7: Which of the following is the process of qualifying the data?
A) Enumeration
B) Topology
C) Coding
D) None of these
Answer: Enumeration
Explanation: Enumeration is the process of qualifying the data.
Question 8: Regression analysis includes which of the following?
A) Relationship modelling in the data
B) yes/no questions
C) Determining associations in the data
D) All of these
Answer: Relationship modelling in the data
Explanation: Relationship modelling in the data is included in Regression analysis.
Question 9: Which of the following are data analysis approaches?
A) Data Mining
B) Predictive Intelligence
C) Both of these
D) None of these
Answer: Data Mining
Explanation: Following are the Data Analysis approaches:
Data Mining
Business Intelligence
Text Analytics
Question 10: Which of the following is a cyclic process in which data is collected and analysed during a single research study?
A) Interim Analysis
B) Constant Analysis
C) Both of these
D) None of these
Answer: Interim Analysis
Explanation: Interim Analysis is a cyclic process in which data is collected and analysed during a single research study.