Estimate error - Study guides, Class notes & Summaries

A company developed a smartphone whose average lifetime is unknown. In order to estimate the average, 200 smartphones are randomly selected from a large production line and tested; their average is found to be 5 years. The 200 smartphones represent: correct answer: a sample Significance level correct answer: Measures the reliability of a statistical inference inferential statistics correct answer: Process of using sample statistics (mathematics) to draw conclusions about population para...

RSK4805 Assignment 3 (DETAILED ANSWERS) 2024 - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED Answers, guidelines, workings and references .. Question 1 (25 marks) 1.1 A bank estimates that its profit next year is normally distributed with a mean of 0.8% of assets and a standard deviation of 2% of assets. How much equity (as a percentage of assets) does the company need to be 99% sure that it will have positive equity at the end of the year? (Use z-values rounded to tw...

response (dependent) variables - one particular variable that we are interested in understanding or modeling (y) predicting or explanatory (independent) variables - a set of other variables that might be useful in predicting or modeling the response variable (x1, x2) What kind of variable is a response variable and why? - random, because it varies with changes in the predictor/s along with other random changes. What kind of variable is a predicting variable and why? - fixed, because it ...

RSK4805 Assignment 3 (COMPLETE QUESTIONS & ANSWERS) 2024 - DUE 15 August 2024 ;100 % TRUSTED workings, Expert Solved, Explanations and Solutions. For assistance call or W.h.a.t.s.a.p.p us on ...(.+.2.5.4.7.7.9.5.4.0.1.3.2)........... Question 1 (25 marks) 1.1 A bank estimates that its profit next year is normally distributed with a mean of 0.8% of assets and a standard deviation of 2% of assets. How much equity (as a percentage of assets) does the company need to be 99% sure that it will have p...

Well-structured RSK4805 Assignment 3 (ANSWERS) 2024 - DISTINCTION GUARANTEED. (DETAILED ANSWERS - DISTINCTION GUARANTEED!).... Question 1 (25 marks) 1.1 A bank estimates that its profit next year is normally distributed with a mean of 0.8% of assets and a standard deviation of 2% of assets. How much equity (as a percentage of assets) does the company need to be 99% sure that it will have positive equity at the end of the year? (Use z-values rounded to two decimal places) (2) 1.2 Given the fol...

ECS3706 Assignment 2 (DETAILED ANSWERS) Semester 2 2024 - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED - DISTINCTION GUARANTEED Answers, guidelines, workings and references ... 1. Explain why econometricians must know and understand the classical linear regression assumptions. (4) 2. Explain the role of the Central Limit Theorem in statistical hypothesis testing (3) 3. You came across a recent (24 April 2024) News24 article, "The DRC had the world’s biggest military spend increase las...

Multiple Choice 1. What of the following is not common within the definitions of assessment? a. Measure or using some type of measurement b. Comparing people c. Samples of behavior d. Objective or systematic measure ANSWER: b 2. When gathering information using assessments, counselors: a. only use standardized tests. b. administer tests in groups rather than on an individual basis. c. gather samples of behavior and infer meanings from those behavi...

Explain what we mean by a confidence level (exp. 95%) The percentage of intervals, based on all possible samples of the same size taken from the same population, that contain the parameter. For example, if we construct 100 95% confidence intervals using 100 samples of the same size, approximately 95 of the intervals will contain the true parameter and 5 will not. A point estimate is the value of a _________ that estimates the value of a ____________ statistic, parameter ...

RSK4805 Assignment 4 (COMPLETE ANSWERS) 2024 - DUE September 2024 ; 100% TRUSTED Complete, trusted solutions and explanations. For assistance, Whats-App 0.6.7-1.7.1-1.7.3.9. Ensure your success with us.. Ass 4 Q1 Suppose that each of two investments has a 4% chance of a loss of R15 million, a 1% chance of a loss of R1.5 million and a 95% chance of a profit of R1.5 million. They are independent of each other. Calculate the expected shortfall (ES) when the confidence level is 95%? The expe...

Complete Solutions Manual for Essentials of Econometrics 5e 5th Edition by Damodar N. Gujarati. Full Chapters Solutions are included. Chapter 1 to 12 - Appendixes Solutions are included. Chapter 1. The Nature and Scope of Econometrics 1.1 What Is Econometrics? 1.2 Why Study Econometrics? 1.3 The Methodology Of Econometrics 1.4 The Road Ahead Key Terms and Concepts Questions Problems Appendix 1A: Economic Data on the World Wide Web PART I. THE LINEAR REGRES...