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# Ch14 - Chapter 14 Statistical Inference A Review of...

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1 Statistical Inference: A Review of Chapters 12 and 13 Chapter 14

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2 14.1 Introduction In this chapter we build a framework that helps decide which technique (or techniques) should be used in solving a problem. Logical flow chart of techniques for Chapters 12 and 13 is presented next.
3 Problem objective? Describe a population Compare two populations Data type? Data type? Interval Nominal Interval Nominal Type of descriptive measurement? Type of descriptive measurement? Z test & estimator of p Z test & estimator of p 1 -p 2 Central location Variability Central location Variability t- test & estimator of μ χ 2 - test & estimator of σ 2 F- test & estimator of σ 1 2 / σ 2 2 Experimental design? Continue Continue Summar y

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Continue Continue Problem objective? Describe a population Compare two populations Data type? Data type? Interval Nominal Interval Nominal Type of descriptive measurement? Type of descriptive measurement? Z test & estimator of p Z test & estimator of p 1 -p 2 Central location Variability Central location Variability t- test & estimator of μ χ 2 - test & estimator of σ 2 F- test & estimator of σ 1 2 / σ 2 2 Experimental design? Continue Continue t- test & estimator of μ 1 - μ 2 (Unequal variances) Population variances? t- test & estimator of μ D t- test & estimator of μ 1 - μ 2 (Equal variances) Independent samples Matched pairs Experimental design?
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Ch14 - Chapter 14 Statistical Inference A Review of...

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