Free Essay

Engineering Statistics Homework 1

In:

Submitted By lucychou369
Words 340
Pages 2
1.7 Review Problems

4. (a) measured during the experiment- measurand
(b) Fixed throughout the experiment- parameter
(c) Not controlled during the experiment- extraneous
(d) Affected by a change made by the experimenter- dependent
(e) Changed by the experimenter- independent

5. What is the main purpose of the scientific method?
The scientific method is used mainly to validate a particular hypothesis or to determine the range of validity of a hypothesis.

6. Classify the following experiments:
(a) estimation of the heating value of gasoline- explorational
(b) measuring the stress-strain relation of a new bio-material- variational
(c) the creation of Dolly- exploratoinal

7. An experiment is performed to determine the velocity profile along a wind tunnel’s test section using a pitot-static tube. The tunnel flow rate is fixed during the experiment. Identify the independent, dependent, extraneous, and parameter variables from the following list:
(a) independent
(b) independent
(c) extraneous
(d) parameter
(e) dependent
(f) dependent 1.8 Homework Problems

6. Select one of the 10 most beautiful physics experiments. Briefly explain the experiment and classify its type. Then list the variable involved in the experiment. Finally, classify each of these variables Galileo’s experiment of falling objects

Drop two balls of different weights from a leaning tower and see which one will land first. The result is that two balls landed at the same time.

Classify: Validational experiment.

Variables: (a) two balls’ weights: independent
(b) tower’s height: parameter
(c) gravity: parameter
(d) the velocity of wind: extraneous
(e) the time two balls land: dependent
(f) height to drop the balls: dependent

7. Measure the volume of room and find the number of molecules in it? Is this an experiment? If so, classify it. The room size: 4m*5m*3.5m
Volume: 70m^3
Number of molecules: 1.75*10^27 It’s not an experiment. An experiment is an act in which one physically intervenes with the process under investigation and records the results. It does not involve any physical change in the process. It is only a measurement.

Similar Documents

Premium Essay

Education By Robert Briesta Analysis

...literature, engineering, the arts and,...

Words: 913 - Pages: 4

Premium Essay

Usage of Social Media Among College Students

...Aamo Iorliam et.al / International Journal on Computer Science and Engineering (IJCSE) The Impact of Social Network Usage on University Students Academic Performance: A Case Study of Benue State University Makurdi, Nigeria. 1 Department of Mathematics and Computer Science, Benue State University, Makurdi, miorliam@yahoo.com 2 Department of Business Management, Benue State University, Makurdi, odeexpress@gmail.com Aamo Iorliam1and Egena Ode 2 Abstract Advancement in technology and the increased availability of internet enabled handheld devices have significantly increased students’ access and use of the internet. The use of social media is enhanced by the availability and access to internet. In Nigeria and the world today, social media has gained acceptability and has become a tool for communication and social cohesion amongst students. The use of this assortment of social media has diverse effects on the user’s life, some of which are negative and others, positive. This study is aimed at investigating the impact of Social Network Usage on University Students Academic Performance using Benue State University Makurdi, Nigeria as a case study. The study sampled 1596 students. The study focused on three key impact areas: the time spent on social media, the frequency of visiting social media and the relationship between the volume of social friends and a student’s academic performance. Correlation and regression analyses were used to determine and measure the extent to which the...

Words: 2912 - Pages: 12

Free Essay

Miss

...Teaching Hub (no. 221 on the Campus Map), Tuesday 13.00 in Lecture Theatre (room 101), Electrical Engineering Building (no. 235 on the map). Attendance at lectures is compulsory. (See the Student Charter.) Make sure you scan your card. Tutorials: Normally on Tuesday afternoon. The tutorials will be in groups of about 20. They form an integral part of the course and attendance is compulsory. They start in Week 1. Set work Work will be set by the lecturer weekly on Monday at the 2pm lecture. It will be already available on VITAL from the previous Friday. The set work consist of two very similar parts: • set C – for solving and detailed discussion at the coming Tuesday tutorial, and • set H – written solutions to which you should hand to your MATH103 tutor by 4 pm next Thursday. All the problems are to be studied before the Tuesday tutorial. Your submitted solutions are marked by your tutor and handed back the following Tuesday; the lecturer’s solutions are available online the same day. Web publications All module materials will be available on VITAL as soon as they are needed in the class. Hard copies of some houndouts will also be distributed, but only once. Closer to the end of the semester, past papers will be put on VITAL. Class Tests There will be one class test during the module; the date will be announced at least a week in advance. Examinations The course will be assessed by a single 2 1 hour examination paper in January. Your perfor2 mance at the tutorial classes (including a...

Words: 1033 - Pages: 5

Free Essay

Professional Development

...must be ensured. This is the challenges professional engineer’s face on a daily basis, an engineer is a person who applies their knowledge in the sciences and mathematics to design and provide services required for the publics need. Engineers are abided by the code of ethics and section 77 of regulation 941 states that all licensed engineers act with the following statement “knowledge of developments in the area of professional engineering relevant to any services that are undertaken; and competence in the performance of any professional engineering services that are undertaken” [1]. Continued professional development, is a learning tool for professional to stay current and maintain their knowledge and skills related to their professional lives [7]. On the basis that an engineer’s work is to provide development for society, the Professional Engineer of Ontario should mandate a professional development program to ensure that engineers remain competent throughout their professional careers. Current practices in Canada and around the world in engineering and similar practices, and the effects of the advancement of technologies requires CPD to ensure competent engineers. Regulating and launching a CPD program easily establishes the requirements of the publics need, regulator’s need, licensee’ need, and the employer’s need. As an engineer one of the main duties that must be...

Words: 1747 - Pages: 7

Premium Essay

Summer Syllabus

...|Topic |Reading Assignment | |Introduction to OM and SCM |Chapter 1 | |Competitiveness, Strategy, & Productivity |Chapter 2 | |Supply Chain Management |Chapter 15 | |Forecasting |Chapter 3 | |Product and Service Design |Chapter 4 | |Exam 1 – Online 6/11 from noon to midnight |Chapters 1-4, & 15 | |Capacity Planning |Chapter 5 | |Process Selection and Facility Layout |Chapter 6 | |Location Planning and Analysis |Chapter 8 | | Quality Management |Chapter 9 | |Exam 2– Online 6/19 from noon to midnight |Chapters 5, 6, 8, 9 | |Statistical Quality Control |Chapter...

Words: 2512 - Pages: 11

Premium Essay

Effect of Romance in Academic Performance

...A. Sampling Design The study used purposive sampling design, which is a form of non-probability sampling (Polit & Hunglar, 1999). Freshmen engineering students who are enrolled during school year 2010 – 2011 at Cavite State University which is comprised 0.5 percent of the total population will be the sample size of the study. The sample population is 50 taken from approximately 1000 engineering students of Cavite State University. B. Data Gathering The answering of the questionnaire was done in Cavite State University and answered by Answered questionnaires then, will be gather, responses coded and will be subject to the appropriate statistical computation for reliability. These students name will then be deleted from the list of the total population so as not to include them again in the selection of the sample population. C. Instruments Used Self- developed questionnaire composed of 10 items questions will be use to measure Study Habits of Education Students. III. Procedure 100 students of Cavite State University who were in romantic relationships were randomly picked and were given questionnaires to answer about the effects of their boyfriends/ girlfriends to them. The data gathered were recorded, tabulated and subjected to statistics to find out how romantic relationships affect the studies of Cavite State University students.       V. Data Gathering The data were gathered according to the effects of romantic relationships to the studies of Cavite...

Words: 1584 - Pages: 7

Free Essay

Gm520: Legal, Political, and Ethical Dimensions

...TAK MENG CHOY GM520: Legal, Political, and Ethical Dimensions Week 2 TCO B Homework 1. State the administrative agency, which controls the regulation. Explain why this agency and your proposed regulation interest you (briefly). How will this proposed regulation affect you or the business in which you are working? Provide the URL to the website where the regulation change proposal is located. (Check your URL to be sure it takes the reader to the actual regulation). (10 points) The FDA or also known as the Food and Drug Administration are agencies that control the rules and regulations. I decided to used this agency as my reference because the FDA is one the most popular and important agency. This proposed regulation change who filed this petition with the FDA to amend their rule is Cargill. Scientist and researchers in Cargill research and development laboratories and engineering departments have worked on this project for a number of years. If Cargill plant expansion to produce their product on that specific location, this would bring a positive economic impact to that location, only if the rules by the FDA become permanent. 2. Describe the proposal/change. (10 points) According to the FDA Summary, “amending the health claim regulation entitled ‘Soluble fiber from certain foods and risk of coronary heart disease (CHD)’ to add barley beta fiber as an additional eligible source of beta-glucan soluble fiber.” The FDA has come to the agreement that there is an important...

Words: 752 - Pages: 4

Free Essay

Outstanding Sixth Forms

...Collation of Research Research 1 | Source | Expectations - Whole School | Expectations - Lessons | Expectations - Student | Expectations - Teacher | Faringdon Community College (Psychology Dept. have produced a set of expectations which are shared with students each year).INFO:11-18 Mixed comprehensive school situated on the edge of Faringdon – an affluent Oxfordshire market town.Specialist Status in Engineering and Applied LearningRated Ofsted Outstanding May 2008 KS5 DATA (2012):Small cohorts – 42 in 2012.2012 Average UCAS points per student – 359.A*-E 99% at A2A*-B 50% at A2 | Attendance & punctuality - find out in advance of the next lesson what work was missed so students will not be behind.Lack of homework will affect rewards such as “Student of the month”All courses give students the following info in first lesson:An outline of the syllabus;coursework details (type, interim deadlines); a schedule for completion of the syllabus (weekly or termly); exam details. | Range of activities in lessons e.g. questioning, matching tasks, videos, discussions & note taking.Active participation, e.g. discussing & listening to others’ ideas.Effective written communication is encouraged.Students expected to bring past work to lessons.Bringing textbooks to every lesson.Regular setting of personal targets which are reviewed in lessons.Weekly exam practice.After each ‘Unit’ is taught a past paper will be sat as a Unit Mock.Copying / highlighting chunks of notes from textbooks...

Words: 2178 - Pages: 9

Premium Essay

Doc, Pdf

...[pic] |Kazakhstan Institute of Management, Economics and Strategic Research (KIMEP) International Summer School, 2011 OPM 5202 OPERATIONS MANAGEMENT | | [pic] OPM 5202 OPERATIONS MANAGEMENT Instructor: Dr. Ardeshir Lohrasbi Office: Telephone: FAX: Email:zlohrasbi@gmail.com Instructor: Dr. Ardeshir Lohrasbi Office: Office Hours: Tel: Fax: E-mail: zlohrasbi@gmail.com Website: https://edocs.uis.edu/alohr1/www Introduction: Welcome to OPM 5202 Operations Management .It is a great pleasure to have all of you in my class. I have been at University of Illinois Springfield in USA for 31 years and served as a Chair of Department of Business Administration , MBA director and Chair of Management Department for several times and my work was recognized last May at the University of Illinois Springfield Faculty Recognition.I taught in graduate and undergraduate online and on ground many different courses such as Production and Operations management, Project Management, Computer Software Application in Business, Service Management, Inventory Management…etc. and I have done a number of consulting for private and public services and presented many research papers at a local and national level. In this class I will share my life time experiences and teachings with all of you. My goal is you learn the course materials and be able to apply the topics, computer applications and techniques in the real world. For more information please...

Words: 2707 - Pages: 11

Premium Essay

Cross-Societal Comparison Report

...Cross-Societal Comparison Report Introduction This cross-societal report will discuss the comparisons between the Italian family structure and the Australian family structure in regards to the gender division of household labor, family authority and paid employment and education. This report looks at literature about the two cultures from a Euro/Western point of view and does not touch on the indigenous cultures of their countries. 1. Household labor division 1.1 The Italian household’s, labor division. It is generally deemed that Italians have large families with many children. In Italy when a child is born the mother or woman of the home will re-organise her life to accommodate the new arrival. Palomba and Sabbadini (1994, as cited in Hennon & Wilson, 2008) calculated that the arrival of each child will add an extra hour a day to the responsibilities of the mother. The more children an Italian family has the less time the mother has for her own basic needs. It is customary that the Italian woman reduces her hours of paid work to accommodate the needs of the family and the tasks of running a home. Instead of sharing the workload the Italian family man will increase his work commitments to accommodate the growth of the family and the loss of income (ibid). The young Italian male is raised in an environment where there are real differences in what each gender is expected to do to contribute to the home. The Italian male would not be expected to help out with *...

Words: 1546 - Pages: 7

Free Essay

Background of the Study

...JKAU: Econ. & Adm., Vol. 10, pp. 35-50 (1417 A.H./1997 A.D.) Student Perceptions of the Causes of Low Performance in Principles of Accounting: A Case Study in Saudi Arabia SULAYMAN H. ATIEH (*) Associate Professor of Accounting Department of Accounting and Management Information Systems College of Industrial Management King Fahd University of Petroleum and Minerals Dhahran, Saudi Arabia ABSTRACT. Students at KFUPM in Saudi Arabia were surveyed to determine what they consider to be the major obstacles to successfully completing the two required courses in Principles of Accounting. The students were categorized as either accounting majors or non-accounting majors and were offered 26 potential obstacles plus one open-ended question. The study showed that the most significant obstacle was the negative attitude of students towards accounting as a difficult subject. Differences in responses of the two student groups occurred for only three of the listed obstacles, none of which were considered significant by either group. There was no correlation between the GPAs of the respondents and their views on the 26 obstacles. A comparison of the findings of this study and those of previous research is also discussed. All students in the College of Industrial Management (CIM) at King Fahd University of Petroleum and Minerals (KFUPM) in Saudi Arabia are required to take two courses in Principles of Accounting. The courses are designated as Acct 201 and Acct 202 and they...

Words: 6454 - Pages: 26

Free Essay

Accounting

...Click here to download the solutions manual / test bank INSTANTLY!! http://testbanksolutionsmanual.blogspot.com/2011/02/accounting-information-systems-romney.html ------------------------------------------------------------------------------------------------------------------------ Accounting Information Systems Romney 11th Edition Solutions Manual Accounting Information Systems Romney 11th Edition Solutions Manual Accounting Information Systems Romney 11th Edition Solutions Manual Accounting Information Systems Romney Steinbart 11th Edition Solutions Manual Accounting Information Systems Romney Steinbart 11th Edition Solutions Manual ------------------------------------------------------------------------------------------------------------------------ ***THIS IS NOT THE ACTUAL BOOK. YOU ARE BUYING the Solution Manual in e-version of the following book*** Name: Accounting Information Systems Author: Romney Steinbart Edition: 11th ISBN-10: 0136015182 Type: Solutions Manual - The file contains solutions and questions to all chapters and all questions. All the files are carefully checked and accuracy is ensured. - The file is either in .doc, .pdf, excel, or zipped in the package and can easily be read on PCs and Macs.  - Delivery is INSTANT. You can download the files IMMEDIATELY once payment is done. If you have any questions, please feel free to contact us. Our response is the fastest. All questions will always be answered in 6...

Words: 18533 - Pages: 75

Free Essay

Docx

...English IE2 READING & WRITING 1. Course Statistics : 120 periods (8 credits) Number of instruction weeks : 10 Number of sessions : 30 Number of sessions per week :3 Number of periods per session 2. Pre-requisite Number of periods :4 Students who achieved IE1 course score > 50 or scored from 35-60 on the Placement Test are required to take this course. 3. Learning outcome Students who have successfully completed the course are expected to have English proficiency at high intermediate level or higher. 4. Course books Reading Activator (Intermediate) Reading Activator (Advanced) Writing Activator (Intermediate) Writing Activator (Advanced) 5. Additional material ESP Handouts NorthStar 3 – Reading and Writing (3rd edition) 6. Lab Practice 2 sessions 7. Weekly Guide: Week 1 2 Session 1 ESP Unit 01: Information Technology - Handout 1 HW: NorthStar 3 Unit 1: The World of Advertising (pp 01- 10) Unit 02: Construction - Handout 2 HW: NorthStar 3 Unit 03: Going to Extremes Sports and Obsession (pp 3948) Unit 03: Engineering 3 4 Vocabulary and Reference Introduction & Review - Introduction to Reading Skills - R.A.I: pp 14-15; 18-31 - R.A.A: pp19-27 - Introduction to Writing Skills - Review: Paragraph writing (designed by the instructor) Fact and Negative Fact - R.A.I: pp 34-47 - R.A.A: pp 35-43 Independent writing Handout 1 - Overview of independent writing ...

Words: 938 - Pages: 4

Premium Essay

Mat 540 Week 9 Final Paper

...1. What types of mathematics does one need to know in order to do mathematical modeling? Beyond basic arithmetic, I do not think any type of math is absolutely mandatory to do mathematical model. The roller coaster problem, for example, could be modeled by using a simple weighted average to calculate a total thrill score based on whatever attributes of the coaster are determined important. The coasters could then be ranked. To make generalizable models that go beyond ranking a known individual items in a sample, an understanding of variables and by extension basic algebra would be needed. Many phenomena that we may want to model involve changes over a period of time. Oftentimes these changes can be best symbolized as rates. In these cases knowledge of calculus and differential equations would be useful....

Words: 1213 - Pages: 5

Premium Essay

Effects of Facebook in the Academic Performance of College Students

...Dr P.M. Ogedebe, J.A.Emmanuel, Y.Musa / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com Vol. 2, Issue 4, July-August 2012, pp.788-797 A survey on Facebook and Academic Performance in Nigeria Universities. Dr P.M. Ogedebe, J.A.Emmanuel, Y.Musa Dept. of Computer Science Bingham University, Nigeria Abstract This paper test students’ facebook usage and their academic performance. The paper was also intended to find how pervasive the use of facebook by University students plays a role in their academic success. A 20 question questionnaire was designed and sent out to approximately 150 students of different Universities in Nigeria. To capture the main types of University, a Federal University, a State University and a Private University cut across the nation were chosen. Of the questionnaire sent out, 81% of them were within the age of 18 to 21. The Independent variables measured how actively students used facebook, including how much time they spend on facebook, how often they update their status, post on friends’ walls, comment on others’ pages, the level of their privacy settings, and how many friends and photo albums they have. In order to accurately measure students’ academic achievement, we had student’s self‐report their in‐class participation, attendance, as well as grade point average. Six pre‐determined hypotheses were tested. First, the more time a student spends on facebook, the lower grade point average the student...

Words: 6631 - Pages: 27