...An assignment on Business statistics Submitted To: Nurun Nahar Department of Business Administration Northern University of Bangladesh Submitted By: Section: A Name | ID | Md. Ariful Islam | BBA120104462 | Md. Faruk Hossen | BBA11034268 | Md. Emran Hossen | BBA110304312 | Md. Mizanur Rahman | BBA11034254 | Date of submission: 17th September 2013 Definitions of statistics Singular sense Statistics can be defined in two sense i.e. singular and plural. In singular sense it may be defined as the various methods and techniques for attaining and analyzing the numerical information. Different economists have different view about statistics. According to Boddingtons Statistics is, “the science of estimates and probabilities”. The techniques and method means the collection of data, organization, presentation, analysis and interpretation of numerical data: Plural sense a plural sense, statistics means the aggregates of numerical facts collected systematically. The most popular and acceptable definition is given by Horace and Secrist. According to them, “Statistics means the aggregate of face affected to a market extent by multiplicity of course, numerically expressed, enumerated or estimated according to reasonable standard of accuracy collected in a systematic manner for pre-determined purpose and placed in relation to each other.” Definitions by A.L. Bowley: Statistics are numerical statement of facts in any department of enquiry placed in relation to each other...
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...M3A4 Lab (Chebyshev’s Theorem) Chebyshev’s Theorem states that in any given data set or list of values, whether it is a population, or a sample of that population, the data will fall in a certain percentage in relation to the average or mean of the values. More specifically, it shows that in the given data set, at least 75% of the data will fall within 2 standard deviations on either side of the mean. The standard deviation is the way we describe how data spreads around the mean. In the same set of data, at least 88.9 % of the data will fall within 3 standard deviations on either side of the mean, and finally at least 93.8 % of the data will fall within 4 standard deviations on either side of the mean. It is easier to see if you look at the data in a chart such a sample that has data which is evenly distributed such as that which is seen in a Bell Shaped Curve. Here, I will draw you a picture so you can see what it looks like. Now, when you look at the graph you can see where the median is. You can see where the values of the standard deviation are, and you can see where each percentage of values will in relation to the mean. Notice the Orange line represents 75% of the data; the Green line represents 88.9% of the data, and the Yellow line represents 93.8% of data. I hope that helps you to understand what Chebyshev’s Theorem says and what it means. Yes, you would be right because Chebyshev’s Theorem can be used in any population or any sample...
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...Statistics Assignments Assignment-W13 Question 1 Statistical data analysis involves the application of various statistical methods in analyzing and deriving inferences from data. Mainly, statistical methods are useful for communicating the research findings and supporting the research hypotheses. Consequently, the methods and analyses ensure that the research methodology and the conclusions of a research are credible. Concisely, the statistical data analysis helps to obtain usable and useful information from data. At a basic level, statistical methods help in describing and summarizing data, identifying variable relationships, comparing variables, identifying variable differences, and forecasting outcomes. In various business scenarios, statistical...
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...Question 1 a) Independent variable is advertising. Dependent variable is sales. The scatter plot shows that there is a positive relationship between amount spent on advertising and sales b) Sales= -4.9913+0.1227(advertising) c) For every additional dollar spent on advertising we can expect sales to increase by an average of 0.1227 dollars d) 0.87092 87% of variance in sales is predictable by amount spent on advertising. e) No. The histogram of residuals is evenly distributed around zero. Most error are at or close to zero f) Yes. Points in the residual plot is lying on a curve around zero. A pattern is seen. (Cheng-Few, John, Alice, 2013, p.800). This indicates that the model is not satisfactory. g) -4.9913+0.1227*90000 =$11038.0087 h) H0: p=0, H1: p ≠0 at α= 0.05 p-value= 5.68×10-14 If p-value is less than α reject H0 P-value < 0.05. This means that the probability that the observed results are due to random choice is low. So reject null hypothesis (H0) Conclusion: At the 5% significance level there is evidence of linear association between advertising expenditure and sales. i) b± t*( sb ) (see appendix 1 ) =0.1227 ± (2.048* 0.0089) = (0.104, 0.141) It could be as low as 0.104 or as high as 0.141 A=8, B= 90, C=3, D=40, E=9.7327, F= 1.9759, G= 4.8247, H=-2.8247, I=6.2971 (See Appendix 2) A=8, B= 90, C=3, D=40, E=9.7327, F= 1.9759, G= 4.8247, H=-2.8247, I=6.2971 (See Appendix 2) j) Question 2 a) =...
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...Week 2 Assignment: Understanding Effective Money Management Assessment A, Part 1: Creating a Personal Financial Statement - Assets | 1 point | Car: Bluebook value $1250.00Cash: $378.00Savings Accounts: $826.00 | Assessment A, Part 2: Creating a Personal Financial Statement - Debts | 1 point | Rent: $750.00Electric/ Gas bill: $131.75Cable/ internet/ Phone bill: $80.42Credit Card: $31.00Cell phone bill: $72.37 | Assessment A, Part 3: Identify Money Management Tool | 1 point | Explain to Monica how the money management tools were identified. | Students should explain how they evaluated various cash management products and services. | Assessment A, Part 4: Creating a Personal Financial Statement – Steps | 1 point | Drag the steps listed on the right into their correct sequences on the left. When done click the Send button | Step 1: I got all my financial stuff together – bills, loans, bank statements, etc. | Step 2: I balance my checkbook. | Step 3: I decided what were my assets and what were my debts. | Step 4: I enter my assets in the program. | Step 5: I enter my debts in the program. | Step 6: The program gave me a Net worth figure at the end. | Assessment B: Creating a Monthly Cash Flow Statement ...
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...Diagnostic Algebra Assessment Definitions Categories Equality Symbol Misconception Graphing Misconception Definition Concept of a Variable Misconception Equality Symbol Misconception As algebra teachers, we all know how frustrating it can be to teach a particular concept and to have a percentage of our students not get it. We try different approaches and activities but to no avail. These students just do not seem to grasp the concept. Often, we blame the students for not trying hard enough. Worse yet, others blame us for not teaching students well enough. Students often learn the equality symbol misconception when they begin learning mathematics. Rather than understanding that the equal sign indicates equivalence between the expressions on the left side and the right side of an equation, students interpret the equal sign as meaning “do something” or the sign before the answer. This problem is exacerbated by many adults solving problems in the following way: 5 × 4 + 3 = ? 5 × 4 = 20 + 3 = 23 Students may also have difficulty understanding statements like 7 = 3 + 4 or 5 = 5, since these do not involve a problem on the left and an answer on the right. Falkner presented the following problem to 6th grade classes: 8 + 4 = [] + 5 All 145 students gave the answer of 12 or 17. It can be assumed that students got 12 since 8 + 4 = 12. The 17 may be from those who continued the problem: 12 + 5 = 17. Students with this misconception may also have difficulty with the idea that adding...
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...Team B Calorie Count Tool PRG/211 May 5, 2014 Team B Calorie Count Tool PROBLEM STATEMENT Team B was asked to develop a program which would calculate the user’s daily intake of calories and measure those calories against the overall calories expended. The core purpose of this program will do two primary functions. First, it will record the user intake of calories as acquired through meals throughout the day. Second, the user will record caloric output associated with physical activity. This information will be calculated together to determine the caloric surplus or deficit for the user. In order for the program to execute accurately, and provide customized results, the user will be required to input personal data to include gender, age, weight, and height. This additional information is essential to determine the user’s default caloric burn rate, otherwise known as the basal metabolic rate (BMR). The BMR and the calories burned as a result of physical activity will be calculated against the intake of calories to determine the overall success for the user. As the program is executed it must: * Record user name, age, height, weight to enable more accurate calculations * Record the users specific caloric values entered for each meal * Record the user activity and caloric burn values for that activity * Calculate the basal metabolic rate (BMR) for the individual * Subtotal the total caloric values for the day * Combine the physical activity and...
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...Problem Solving with Computing Homework - WEEK 2 [30 points] This is a review of some of the material from Chapter 2 and lectures from class. No credit for answers that are copies or near verbatim transcripts – please use your own words1 and document sources where appropriate. 1 This will apply to all assignments in this class. Answer the following questions: Chapter 2 1. Short Answers [1 point each, 2 points total] 1. What does a professional programmer usually do first to gain an understanding of a problem? The first thing that a professional programmer usually do first to gain an understanding of a program is to closely relate customer (Interview ) to inquire or gather information about the problem. 2. What two things must you normally specify in a variable declaration? The two things normally specified in a variable declaration are the variable type and identifier. 2. Algorithms / Pseudocode [1 point each, 5 points total] 1. Design an algorithm that prompts the user to enter his or her height and stores the user’s input in a variable named height. Declare height Display “Enter Your Height” Input Height Display “Height” 2. Write assignment statements that perform the following operations with the variables a and b. - Adds 2 to a and stores the result in b. - Subtracts 8 from b and stores the result in a Set b=2+a Set a=b-8 3. Write a pseudocode statement that declares the variable cost so it can hold real numbers. Floating Point-Variable...
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...11108944 Name: ASHWINI KUMAR Roll No. : RE3R02B32 PART- A 1. Ans :- (a) unary and ternary operator Unary operator:- It pecedes an operand . The operand (the value on which the operator operates ) of the unary operator must have arithmetic or pointer type and the result is the value of the argument. Example:- If a=5 then +a means 5 If a=0 then +a means 0. If a=-4 then +a means -4. Ternary operator:- It precedes an operand. The operand of the unary operator must have arithmetic type and the result is the negation of the operand’s value. Example:- If a=5 then –a means -5 If a=0 then –a means 0 If a=-4 then –a means 4. (b) Assignment and equalto operator Assignment operator:- Equal to operator: An assignment operator assigns value In this we put the To a variable. value as it is. Example – Example- a*=5 means a=5*5. Int a; a=5 means a is initialized with 5 if(a==5) { return true; } return false; (c) Expression and statement Expression:- An expression is any valid combination of operators , constants , and variables. Example:- ...
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...Selection statements Selection is used to select which statements are to be performed next based on a condition being true or false. Relational expressions In the solution of many problems, different actions must be taken depending on the value of the data. The if statement in C I used to implement such s decision structure in its simplest form – that of selecting a statement to be executed only if a condition is satisfied. Syntax: if(condtion) statement executed if condition is true When an executing program encounters the if statement, the condition is evaluated to determine its numerical value, which is then interpreted as either true or false. If the condition evaluates to any non-0 value (positive or negative), the condition is considered as a “true” condition and the statement following the if is executed; otherwise this statement is not executed. Relational Operators In C Relational operator | Meaning | Example | < | Less than | age < 30 | > | Greater than | height > 6.2 | <= | Less than or equal to | taxable <= 200000 | >= | Greater than or equal to | temp >= 98.6 | == | Equal to | grade == 100 | != | Not equal to | number !=250 | In creating relational expressions, the relational operators must be typed exactly as given in the above table. Thus, although the following relational expressions are all valid: age > 40 length <= 50 temp >= 98.6 3 < 4 flag == done day != 5 The following are invalid: length =< 50 ...
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...SAS 认证考试样题 1.A raw data file is listed below. 1---+----10---+----20---+--son Frank 01/31/89 daughter June 12-25-87 brother Samuel 01/17/51 The following program is submitted using this file as input: data work.family; infile 'file-specification'; run; Which INPUT statement correctly reads the values for the variable Birthdate as SAS date values? a. input b. input c. input d. input relation relation relation relation $ $ $ $ first_name first_name first_name first_name $ $ $ $ birthdate birthdate birthdate birthdate date9.; mmddyy8.; : date9.; : mmddyy8.; Correct answer: d An informat is used to translate the calendar date to a SAS date value. The date values are in the form of two-digit values for month-day-year, so the MMDDYY8. informat must be used. When using an informat with list input, the colon-format modifier is required to correctly associate the informat with the variable name. You can learn about • • informats in Reading Date and Time Values the colon-format modifier in Reading Free-Format Data. 2.A raw data file is listed below. 1---+----10---+----20---+--Jose,47,210 Sue,,108 The following SAS program is submitted using the raw data file above as input: data employeestats; input name $ age weight; run; The following output is desired: name age weight Jose 47 210 Sue . 108 Which of the following INFILE statements completes the program and accesses the data correctly? a. infile 'file-specification' pad; b. infile 'file-specification'...
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...STUDY HABITS OF SECOND YEAR BS-AVTECH STUDENTS OF PATTS COLLEGE OF AERONAUTICS S.Y 2013-2014 An Undergraduate Research Presented to The Languages Department of PATTS College of Aeronautics In Partial Fulfillment of the Requirements for the course ENGL 211 – Technical Report Writing By Guevarra, Giorgio Martin C Guevarra, Lorenzo Miguel Jang, Jose, Yosalina, Leo Xander March 2014 ACKNOWLEDGEMENT The researcher would like to express our thanks to the lord. Our God for his guidance towards everything we do In life, including this study that we had made, and for being an inspiration for us all to do our best in life. We give our thanks to Ms. Karen M. Millano, our adviser for ENGL 211, for carefully and patiently guiding us so that we may finish the thesis research, and for supporting us and believing in us, that we can accomplish our task finishing the thesis. To the respondents of this study, we express our gratitude because without them, this thesis research would not have been completed, we thank them for allowing us to conduct a survey during their spare time, and their patience and integrity in answering the survey. To our parents, for their support and everlasting patience and understanding for us. And lastly to our classmates, since they have been with us since the beginning of the semester and they had been our companions in everything we do for the subject ENGL 211. ABSTRACT STUDY HABITS OF...
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...SCHOOL OF ENGINEERING YEAR 3 MECHATRONICS ASSIGNMENT LAB REPORT Reading an Analogue Voltage from a Potentiometer to turn a Motor on and off with reading of 40 Assignment 2 Owais Jahanzeb BENG Mechanical Engineering with buissness Lecturer: Dr. Tom Shenton Aim & Objectives The aim of this lab is to develop a functioning program for the PICDEM board to read an analogue signal from a potentiometer and turning a motor on or off if the signal exceeds a certain limit. The program should depict the function that it should turn the motor ON and OFF if the potentiometer reading is less than or equal to 40. The practical uses of such program can be seen in automotive , injection moulding machines, wood processing machines, modern temperature controlled plants, speed control torque operations. Developing Program 1 Figure 1. The schematic circuit & PICDEM board configuration for Program Figure 1. The schematic circuit & PICDEM board configuration for Program The objective of program is to read the correspondent voltage analogous to the potentiometer position and switch the motor on if the reading is over 40 and switch it off if the reading is less than or equal to 40, the value can be adjusted by twisting the screw clockwise and anticlockwise. The program works by implementing the following code. PIC program for Test of potentiometer with value less equal to 40 with comments: include <p16f917.inc> extern DisplayDigit1, DisplayDigit2...
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...Law Written Assignment 3 Case Study 1 Parks, a 7-foot, 265-pound center for the San Diego Slick, objected when his contract was assigned from the ABC Corporation to the XYZ Corporation, the team’s new owner. The change of owners did not cause a change in the composition of the team although a new coach was hired. Parks’s compensation and his responsibilities remained the same. Was this contract assignable? Facts of the Case: 1) Parks contract was assigned from the ABC Corporation to XYZ Corporation. 2) Parks compensation and his responsibilities remained the same. Issues: 1) The reason why we are in court today is to identify if Park’s contract was assignable. Rules of the Law: 1) Personal Service Contract – The parties agree that a personal service contract may be assigned. This allows the trade of an athlete from one team to another team. 2) Notice of Assignment – Assignee is under a duty to notify the obligor that the assignment has been made and performance must be rendered to the assignee. 3) Anti-Assignment Clause – Prohibits the assignment of rights under the contract. 4) Approval Clause – requires that the obligor approves any assignment of contract. Analysis & Conclusion: Since we do not have all the facts we can assume the following: 1) Parks contract did include the Personal service contract. 2) Notice of assignment was made by XYZ Corporation. 3) Parks contract did NOT include Anti-Assignment Clause. ...
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...Management Accounting Individual Assignment 1. Variable manufacturing cost per unit = (323,000,000-160,000,000-24,000,000-100,000,000) 850,000 = $45.88 per unit Fixed manufacturing cost per unit = $100,000,000 850,000units = $117.65 per unit Total manufacturing cost per unit= 45.88+117.65 = $163.53per unit 2. Fixed overhead rate= $100,000,000 800,000units =$125 per unit Production volume variance= (850,000 X 125)-(800,000 X 125) =$106,250,000-$100,000,000 = $6,250,000 Favourable 3. Absorption costing. | $ | $ | SalesLess: Cost of goods soldOpening inventoryProduction(850,000 X (255+125))(-)Ending inventory(30,000 X 405)Gross MarginAdjustments for production variance(850,000-800,000)x125Operating Income | 0323,000,000(11,400,000) | 450,000,000(311,600,000) | | | | | | 138,400,0006,250,000F | | | 144,650,000 | Income Statement for the year ended 31December 2012 4. Variable Costing Income Statement for the year ended 31 December 2012 | $ | $ | SalesOpening inventoryProduction(850,000 X 255)(-)Ending inventoryContribution MarginFixed factory overheadOperating income | 0216,750,000(7650,000) | 450,000,000(209,100,000) | | | 240,900,000(100,000,000) | | | 140,900, 000 | 5. Based on the calculations of absorption costing and variable costing for the year 2012,it would be better to calculate and measure using the absorption costing...
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