PPT-Confidence Intervals, Effect Size and Power

Chapter 8 Hyde Fennema amp Lamon 1990 Mean gender differences in mathematical reasoning were very small When extreme tails of the distributions were removed differences were smaller and reversed direction favored girls. Remember we saw The sample proportion will differ from the population proportion by more than the margin of error less than 5 of the time The Margin of Error for a sample of size n is 1 n Suppose we wanted to estimate a Population Mean rather than a Robin H. Lock, Burry Professor of Statistics. Patti Frazer Lock, Cummings Professor of Mathematics. St. Lawrence University. Joint Mathematics Meetings. New Orleans, January 2011. Intro Stat at St. Lawrence. 1 2 3 4 5 6 intervals intervals 2nd7th 3rd6th 4th5th 5th4th 6th3rd 7th2nd THE RULE OF NINES toby w. rush creative commons BY-NC-NDtobyrush.com in . Assessments. Clare Trott. . and Hilary . Maddocks. This Session. Why use statistics in assessments. ?. “Averages”, Standard Deviation, variance, Standard . Error. Normal distribution, confidence intervals. When I cover the entire population I get to know the truth – precisely.. That means that when my sample size is high I get a more precise answer.. That means that when my sample size increases my preciseness increases. Lesson Confidence Intervals of Confidence Intervals of Odds Ratio and RelativeRiskRelativeRisk Relative Lesson14OutlineLesson14Outline Lesson Lesson14coversLesson14covers Confidence Interval of an Od GrowingKnowing.com © 2011. 1. GrowingKnowing.com © 2011. Estimates. We are often asked to predict the future!. When will you complete your team project?. When will you make your first million dollars?. Half/whole steps. Perfect. Tritone. Major/Minor. Augmented/Diminished. Intervals. Intervals. : the distance between any two pitches. 5. kinds of intervals. Perfect. Major. Minor. Augmented. Diminished. . Results and Discussion. Results Section. Start on first line after the last line of the Methods section. No hard page break.. Type “. Results. ” on that first line. . Center it.. Include tables and/or figures when appropriate.. Section 8.1. Confidence Intervals: The Basics. After this section, you should be able to…. INTERPRET a confidence level. INTERPRET a confidence interval in context. DESCRIBE how a confidence interval gives a range of plausible values for the parameter. Robin Lock. Burry Professor of Statistics. St. Lawrence University. AMATYC Webinar. December 6, 2016. The Lock. 5. Team. Patti & Robin. St. Lawrence. Kari. Harvard. Penn State. Eric. North Carolina. Confidence Intervals for a Population Proportion Section 8.3 Objectives Construct a confidence interval for a population proportion Find the sample size necessary to obtain a confidence interval of a given width An Overview. Statistical Significance. Only tells you sample results unlikely were the null true.. Null is usually that the effect size is absolutely zero.. If power is high, the size of a significant effect could be trivial.. Mathematics. Mr Nieto. Identifying the value of intervals on a scale. Rounding mass to nearest interval. Independent task. Answers. 2. Lesson Agenda. 3. Pencil. Rubber. Exercise book. You will need....