This document contains questions and answers about statistical concepts and procedures. It includes multiple choice and free response questions about skewed data distributions, using tests that assume normality on non-normal data, and the purpose of degrees of freedom. The document also provides brief definitions of hypothesis testing and confidence intervals in inferential statistics.

1. Q1: MCQ’s 10 marks
Q2: Statistical Reasoning 3 marks
Q3: Which Statistical Procedure to use 8 marks
Q4: Interpret the data analyzed 3 marks
Statistical Procedure
Q: Why does the skewed have mean different from median?
A: Skewed data has extreme values in it and mean is not resistant to extreme value and it gets pulled by
the extreme value towards itself while median is a position value which is resistant to the effect of
extreme value that’s why it’s not affected.
Q: Sometimes the data is non-normal but we use test which require normal data. How is it possible?
A:
Q: Why do we use the degree of freedom?
A:
Inferential Statistics
Hypothesis Testing: Testing a claim regarding the behavior of population.
Estimation (Confidence Interval): Estimation of population characteristics with the help of sample
characteristics.