CHAPTER 16 THE FURTHER DATA ANALYSIS
CHAPTER 16 THE FURTHER DATA ANALYSIS
16.1 Introduction Initial Data Analysis Further Data Analysis Yes Describe Relationship
16.1 Introduction
16.2 FURTHER DATA ANALYSIS: ( MEASURED V ATTRIBUTE) o FDa is procedure that enables a decision to be made, based on the sample evidence oo There is no relationship s There is a relationship o these statistical procedures are called hypothesis tests
16.2 FURTHER DATA ANALYSIS: (MEASURED V ATTRIBUTE) ❖ FDA is procedure that enables a decision to be made, based on the sample evidence: There is no relationship There is a relationship ❖ These statistical procedures are called hypothesis tests
冷 Hypothesis osA statement about a population developed for purpose of testing 冷 Hypothesis tests ooA Procedure based on sample evidence and probability theory to determine whether the hypothesis is a reasonable statement o Four stages of hypothesis tests ≈ s Stage1: Specifying the hypotheses ≈ s Stage2 Defining the test parameters and the decision rule s Stage 3 EXamining the sample evidence ≈ s Stage4 The conclusions
❖ Hypothesis A statement about a population developed for purpose of testing. ❖ Hypothesis tests A Procedure based on sample evidence and probability theory to determine whether the hypothesis is a reasonable statement. ❖ Four stages of hypothesis tests Stage 1: Specifying the hypotheses. Stage 2: Defining the test parameters and the decision rule. Stage 3: Examining the sample evidence. Stage 4: The conclusions
o FDA for Measured v attribute requires two different hypotheses tests Two levels of attribute explanatory variable os three or more levels of attribute explanatory varlable
❖ FDA for Measured v Attribute requires two different hypotheses tests Two levels of attribute explanatory variable three or more levels of attribute explanatory variable