PDF-Size and Proportion

   5         . moderate proportion of slum-dwellershigh proportion of slum-dwellershigh proportion of slum-dwellersmoderate proportion of slum-dwellersmoderate proportion of slum-dwellersmoderate proportion of slum- Matthew Maguffee. The key to having well presented food, to have food that looks good and tastes exactly what it looks like, is balance, color and proportion (I’m not talking elephant ears on the boardwalk). This meal epitomises that idea: the contrast of the spring colors (red, green, purple), mixed with the beautiful sheen of the asjure sauce on the veal is perfectly balanced. The proportion of this dish is superb. There are enough vegetables to allow you to know you’re not at Montana's (steak house), but rather at a classy establishment.. Presented by :Dr. . Reshma.S. . Moderator : Dr. . Subodh. S Gupta. Why do we need sample size calculation?. When should we calculate sample size?. Basic principles for sample size calculation. Derivation of sample size formula. Ratio . A ratio is the comparison of two numbers by division.. A classroom has 16 boys and 12 girls. . Also written as . 16 boys. , . 16:12 or 16 to 12. 12 girls. Generally, ratios are in lowest terms:. Confidence Intervals. (application of the Central Limit Theorem). Sections 5.1, 5.2. Introduction and Confidence Intervals for Proportions. Lecture Unit 5 Objectives. Construct . confidence intervals. Ratios. Comparison of two items/objects. Written one of 3 ways. As a fraction. With : (colon). . using word “to”. When writing a ratio. First thing you talk about is the numerator. Second thing you talk about is the denominator. Excel. GrowingKnowing.com © 2011. 1. GrowingKnowing.com © 2011. Sample size. How big should a sample be for a valid study?. Why phone 10,000 students if phoning 50 is enough?. Large samples take longer and cost more. If the individuals in the population differ in some qualitative way, we often wish to estimate the proportion / fraction / percentage of the population with some given property.. For example: We track the sex of purchasers of our product, and find that, across 400 recent purchasers, 240 were female. What do we estimate to be the proportion of all purchasers who are female, and how much do we trust our estimate?. 3/28/17. How do we write ratios?. How do we write and simplify rates?. How do we decide whether two ratios/rates are proportional?. Today We’ll Discuss. Definition:. The . ratio. of two numbers . Manual. GrowingKnowing.com © 2011. 1. GrowingKnowing.com © 2011. Sample size. How big should a sample be for a valid study?. Why phone 10,000 students if phoning 50 is enough?. Large samples take longer and cost more. Sixth Edition. Chapter 6. Confidence . Intervals. Copyright © . 2015, 2012, 2009 . Pearson Education, Inc. All Rights Reserved. Chapter Outline. 6.1. Confidence Intervals for the Mean (. . Known. for . a population proportion.. Do Now:. A confidence interval is centered around a:. I. Parameter. II. Statistic. III. Measure of Variance.. (A) I only (D) I and II only. Click the mouse button or press the Space Bar to display the answers.. What are the four parts to a confidence interval problem?. What three things must the interpretation cover?. What three things affect the size of the margin of error?. Essential Statistics 2E William Navidi and Barry Monk Confidence Intervals for a Population Proportion Section 7.3 Objectives Construct a confidence interval for a population proportion Find the sample size necessary to obtain a confidence interval of a given width