'Confidence interval estimates' diaporamas de présentation

Chapter 8 Inferences from Two Samples

Variation (one population) 6-4 Confidence interval for the population variance 7- 5 Inferences about the standard deviation 8-1 Inferences about Two Means: Independent and LARGE Samples 8-2 Inferences about Two Means: Matched Pairs 8-3 Comparing Variation in Two Samples

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Reasoning in Psychology Using Statistics

Reasoning in Psychology Using Statistics. Psychology 138 2017. Inferential statistics used to generalize back. Population. Hypothesis testing Testing claims about populations (and the effect of variables) based on data collected from samples. Estimation

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Chapter 8: Confidence Intervals

Chapter 8: Confidence Intervals. Lecture PowerPoint Slides. Chapter 8 Overview. 8.1 Z Interval for the Population Mean 8.2 t Interval for the Population Mean 8.3 Z Interval for the Population Proportion 8.4 Confidence Intervals for the Population Variance and Standard Deviation.

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Lecture 20

Lecture 20. Simple linear regression (18.6, 18.9) Homework 5 is posted and is due next Tuesday at 3 p.m. (Note correction on question 4(e)). Regular office hours: Tuesday, 9-10, 12-1. Extra office hours: Today (after class), Monday, 10-11. Midterm 2: Wednesday, April 2 nd , 6-8 p.m.

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Point Estimates

Point Estimates. A point estimate is a single number determined from a sample that is used to estimate the corresponding population parameter. Confidence Intervals. Confidence Interval Developed from a sample. Provides a range of likely values for a parameter.

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