mean‚Median‚Mode 5. Dispersion – measures of variablility;Range‚Quartile deviation or interquartile range‚ Mean deviation‚ Standard deviation‚Variance‚Coefficient of variation 6. Skewness‚ moments and kurtosis 7. Correlation and regression a. Correlation ;Karl Pearson’s coefficient of correlation‚ Rank correlation‚ Coefficient of determination b. Linear regression; Scatter diagram‚ Regression equation 8. Index numbers 9. Times series – moving averages Evaluation
Premium Operations research Statistics Average
Research Methods Learner Perception of a Good Teacher Submitted by: Sabrina Karam Submitted to: Ma’am Rashida Qureshi Registration no: 1117104 (BSSS-7) Assignment no: 2 Dated: 22nd December 2014 Contents: Title………………………………………………………………………………………….03 Introduction……………………………………………………………………………
Premium Pearson product-moment correlation coefficient Education Correlation and dependence
Final Project Research to figure out the most cost-effective way of acquiring textbooks 1. Executive Summary The purpose of our research is to figure out the various ways of acquiring a textbook for the University of Cincinnati students. We want to help students minimize the cost of textbooks by helping them compare different options. We also want to find out what are the different options of selling the book afterwards. Our goal is to help students stay cost efficient but also find out
Premium Pearson product-moment correlation coefficient Correlation and dependence Spearman's rank correlation coefficient
International Journal of Project Management 29 (2011) 751 – 763 www.elsevier.com/locate/ijproman Risk ranking and analysis in target cost contracts: Empirical evidence from the construction industry Daniel W.M. Chan a ‚ Albert P.C. Chan a ‚ Patrick T.I. Lam a ‚ John F.Y. Yeung b ‚ Joseph H.L. Chan a‚⁎ a Department of Building and Real Estate‚ The Hong Kong Polytechnic University‚ Hung Hom‚ Kowloon‚ Hong Kong‚ China b College of International Education‚ School of Continuing Education
Premium Risk Project management Spearman's rank correlation coefficient
can only be said that the condition of interest was “correlated” with the effects. - Degree of correlation can be represented by the correlation coefficient (the letter r). This summarizes the difference between the two variables‚ and can range from -1.0 to +1.0 (from a negative to positive number). Instructions on calculating the correlation coefficient can be found in any preliminary statistics book. - The difference between positive‚ negative‚ and zero correlation is crucial; if the variables
Premium Pearson product-moment correlation coefficient Correlation and dependence Sample size
chapter eight SURVEY AND CORRELATIONAL RESEARCH DESIGNS You have probably made or heard the popular comment “Is it just me‚ or [fill in the blank here]?” This question is really a survey that asks others to indicate their level of agreement with some viewpoint—for example‚ “Is it just me‚ or is it hot in here?” or “Is it just me‚ or was this exam difficult?” We largely ask such questions to gauge the opinions of others. Many examples likely occur every day‚ from completing a customer satisfaction
Premium Correlation and dependence Pearson product-moment correlation coefficient Spearman's rank correlation coefficient
Elementary Concepts in Statistics Overview of Elementary Concepts in Statistics. In this introduction‚ we will briefly discuss those elementary statistical concepts that provide the necessary foundations for more specialized expertise in any area of statistical data analysis. The selected topics illustrate the basic assumptions of most statistical methods and/or have been demonstrated in research to be necessary components of one’s general understanding of the "quantitative nature" of reality
Premium Statistics Normal distribution Pearson product-moment correlation coefficient
Chapter 13 Problems (2‚ 9‚ 11‚ & 14) 2) Determine the coefficient of correlation and the coefficient of determination. Interpret the association between X and Y. X Y x^2 xy 5 13 25 65 3 15 9 45 6 7 36 42 3 12 9 36 4 13 16 52 4 11 16 44 6 9 36 54 8 5 64 40 39 85 211 378 r = (378) - (39)(85) / 8 = -36.375 √[211 - (39)^2 / 8] *
Premium Pearson product-moment correlation coefficient Correlation and dependence Spearman's rank correlation coefficient
DATA COLLECTION This research is conducted in University of Dar Es Salaam at Cafeteria 1. The University has 5 cafeterias which are commonly used by University students. Most of students use cafeteria as the only place to get meal at the campus. Most of Cafeterias have the capacity of accommodating 100 students for the same time. Purposive probability sampling method was employed to identify the sample respondents. In this study both primary and secondary sources of data were used to collect the
Premium Dar es Salaam Spearman's rank correlation coefficient Customer
feedback on the exam questions‚ the first question asked students to report and interpret some correlation and logistic regression output from SPSS. Good answers described the various correlations between the study variables and OUTCOME (correlation coefficient‚ strength‚ direction and significance)‚ including an explanation of what each association meant in words. Most answers described the logistic regression findings including pseudo R-square and chi-square‚ identified the significant predictors and
Premium Pearson product-moment correlation coefficient Correlation and dependence Question