ECON 203 1st Edition Lecture 8 Outline of Last LectureI. Statistical Inference: Two Population Difference in MeansII. Case 11. The Excel TableIII. Case 21. Tail TestA. Answers2. IntervalOutline of Current LectureI. Difference in Means, Dependent Samples1. Test Statistic Formula2. Degree of FreedomII. Case 11. Identifying Hypothesis2. Sample Size3. Point Estimate MeaningCurrent LectureI. Difference in Means, Dependent Samples1. Test Statistic Formula- Now has the uD to represent the differences in the data of two samples.2. Degree of Freedom- Always in nD-1!II. Case 11. Identifying HypothesisHo: u1 = u2 ; u1-u2=0 Ha: u1>u2 ; (u1 – u2) ≥ 0 ; uD > 02. Sample size will be the size of one sample because they have the same amount. This is also because you are looking at sample size, not difference of sample sizeThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.3. Point Estimate Meaning : if the answer is 4.55 it means the tires last 450 miles
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