STATISTICAL TECHNIQUES AND TOOLS
INTRODUCTION OF STATISTICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A lecturer wants to know how students in the class did on their first semester final exam. He asks 15 students by calling their name from the class attendance list to state their CGPA result. He concludes from their report that the class did extremely well. What is the sample?
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Students in the first semester
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Staff and students at POLIMAS
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Students of all semesters
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15 students in the first semester
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Explanation:
Detailed explanation-1: -Hypothesis testing is a formal process of statistical analysis using inferential statistics. The goal of hypothesis testing is to compare populations or assess relationships between variables using samples.
Detailed explanation-2: -Inferential statistics are based on the assumption that sampling is random. We trust a random sample to represent different segments of society in close to the appropriate proportions (provided the sample is large enough; see below).
There is 1 question to complete.