EQT173 BUSINESS STATISTICS
Semester II 2014/2015
1) What is the difference between a sample and a population? 2) What is the difference between a statistic and a parameter? 3) What is the difference between descriptive and inferential statistics? 4) What is the difference between a categorical variable and a numerical variable? 5) What is the difference between a discrete variable and a continuous variable? 6) What is an operational definition and why is it so important?
7) What are the four levels of measurement scales?
8) Three different beverages are sold at a fast food restaurant soft drinks, tea, and coffee. a) Explain why the type of beverage sold is an example of a categorical variable. b) Explain why the type of beverage sold is an example of a nominal scaled variable. 9) Soft drinks are sold in three sizes at a fast-food restaurant small, medium, and large. Explain why the size of the soft drink is an example of an ordinal scaled variable. 10) Suppose that you measure the time it takes to download an MP3 file from the Internet. a) Explain why the download time is a continuous numerical variable. b) Explain why the download time is a ratio scaled variable. 11) The following information is collected from students upon exiting the campus bookstore during the first week of classes:
Amount of time spent shopping in the bookstore
Number of textbooks purchased
Classify each of these variables as categorical or numerical. If the variable is numerical, determine whether the variable is discrete or continuous. In addition, determine the level of measurement for these variables.
12) For each of the following variables, determine whether the variable is categorical or numerical. If the variable is numerical, determine whether the variable is discrete or continuous. In addition, determine the level of measurement for each of the following. a)
Gendered Bodies: Sports
In a sex/gender binary system, expectations of difference are played out in terms of gendered bodies. In a male dominated society, women’s bodies become ‘contested terrain’. It is important to utilize a macro level, social construction approach and conduct a GBA to consider the social, gendered construction of sports (as well as health & sexualities).
1. Is sport gendered? Is sport associated more with men/masculinity?
a. Importance of historical, cultural, class specificity when examining sports; awareness of women’s past participation in sports at certain times & places
Class affected women’s participation as well as geographic location. Example farm women were more athletic.
General rational for limiting women’s participation in sports is related to cult of true womanhood. Real women not supposed to be involved in aggressive play instead should look after family and be gental.
40s and 50s known as dark ages for women in sports maybe due to world war and post-world war when women pressured to have babies so not enough time for sports
Involvement in sport is another area, like waged work, where there are often assumptions that women only recently have started to participate and contribute. Find past examples of women who were athletes or involved in sports.
Check out Canadian Association for the Advancement of Women and Sport and Physical Activity, and any other organizations that you can find that...
...FE1002 PHYSIC 2 Tutorial 1– [optic] 2007/2008 Semester 2
FE1002 Physic 2 Tutorial 1 – Optic QUESTION 1: light with a wavelength of 700nm is incident on the face of a fused quartz prism (n = 1.46 at 700nm)at an angle of 75˚ (with respect to the normal to the surface). The apex angle of the prism is 60.0˚. Calculate the a) b) c) d) angle of refraction at this first interface angle of incident at this second interface angle of refraction at the second interface and angle between the incident and emerging rays.
Hint: Use Snell’s law n1sin Solution: a) n1sin
b) total angle inside a rectangular = 360˚ 60˚+60˚+ (90˚+41.4˚)+(90˚+ 3)=3 60˚ c) 1.46sin18.6 = 1sin d)
75 (75˚2)+( 43) 3 2
QUESTION 2: a) A glass fiber (n=1.50) is submerged in water (n = 1.33). what is the critical angle for light to stay inside the optical fiber? Hint: For light to stay within the optical fibre, it must be incident on the air-glass interface at angle greater than the critical angle. Use Snell’s law n1sin 1=n2 sin 2 with 2 = 90˚. Solution: 1.50sin
b) Determine the maximum angle for which the light rays incident on the end of the pipe shown in the Figure. Are subject to total internal reflection along the walls of the pipe. Assume that the pipe has total internal reflection of 1.36 and the outside medium is water. Hint: Apply Snell’s law to the entrance end of the fibre
Done by Foo Boon Kiat...
...Dr. T.M.P. Mahadevan
Dr. T.M.P. Mahadevan was born in 1911 and was educated in Madras. Since his graduation in philosophy, with a brilliant First Class Honors in 1933, been engaged in intensive research and teaching. Several of his works, noted for their width of range and depth of insight, deal with Hindu scriptures and religion in general. In 1948-49 Dr. Mahadevan lectured at Cornell and other American universities on Indian Philosophy. He has participated in several international conferences, including the cultural meeting of the Royal National Foundation at Athens in 1966. He was the General President of the Indian Philosophical Congress held at Nagpur in 1955. He is the Area Secretary of the Union for the Study of Great Religions. After, he became the Director of the Centre of Advanced Study in Philosophy, in the University of Madras. In recognition of his services to the cause of religion, philosophy, and culture at home and abroad, the Government of India gave him the award of Padmabhushan in 1967. Dr. T.M.P. Mahadevan passed way in 1983 at the age of 72.
Indian Philosophy, along with Chinese philosophy, is one of the foremost Eastern traditions of abstract inquiry. Indian philosophy, expressed in the Indo-European language of Sanskrit, comprises many diverse schools of thought and perspectives and includes a substantial body of intellectual debate and argumentation among the various views.
Among the main classical schools of Indian thought are...
...INVESTMENT & PORTFOLIO MANAGEMENT
TUTORIAL 1: INTRODUCTION
CHAPTER 1: QUESTION 1
a The process of investment concerns the purchase of assets which will provide a future return to allow for future consumption or further investment. Individuals have to make choices between current and future consumption and because their pattern of income does not always match their pattern of consumption, they are required to make investments. Throughout an individual’s life, an amount of wealth is required to maintain variable levels of consumption. The level of wealth also varies over time. At any point in time, the current level of desired consumption may exceed the current level of wealth. In these circumstances, the individual must obtain additional resources from another to satisfy their consumption needs. That is, the individual must borrow. However, at other points in time, the current level of desired consumption may fall below the current level of wealth. In these circumstances, the individual will save their excess wealth. Typically, this excess wealth is used to purchase an asset, which will yield a future return of wealth, which involves investment.
b The assets into which savings are put represent investment assets. These assets may be financial assets such as shares, bonds or bills or physical assets such as real estate, motor vehicles or art collections. Intangible assets such as human capital are...
...UEME4363: Internal Combustion Engines Tutorial No. 3
1. (a) Show that the temperature of the gases along a cylindrical exhaust pipe is given by the following expression:
hπ d T − Tw = (To − Tw ) exp − x mC & p
where Tw is the wall temperature assumed to be constant along the pipe, To is the gas temperature at the inlet to the exhaust pipe, h is the convective surface heat transfer coefficient, d is the diameter of the pipe, m is the mass flow rate of the exhaust gasses, Cp is the mean specific heat of the exhaust gasses, x is the distance from the exhaust pipe inlet (b) Hence show that the heat loss from the exhaust gasses to the exhaust pipe is given by:
hπ d & Q = mC p (To − Tw )1 − exp − L mC & p
where L is the total length of the exhaust pipe. ( c) Evaluate the total heat loss to the exhaust pipe if the convective heat transfer coefficient h may be obtained from the formula:
Nu = 0.023 Re 0.8 Pr 0.3
For pulsating flow, assume h is 2 times the value obtained from this formula. Prandtl Number Pr = 0.6 Mass flow rate of exhaust gasses = 0.250 kg/s Internal diameter of exhaust pipe = 6 cm Cp of exhaust gasses 1.08 kJ/kg K Density of exhaust gasses = 0.494 kg/m3 Dynamic viscosity of exhaust gasses = 3.32E-5 kg/m s Thermal conductivity of exhaust gasses = 5.26E-5 kW/m K Total length of exhaust pipe = 1.8 m Initial exhaust gas temperature = 483o C Temperature of exhaust pipe wall = 200o C...
...Name:__________________________________ Student #: _______________________________________
ENSC 406 – Spring 2014 – Week 4 Tutorial Assignment
Readings: Textbook chapter 4 and 5, Engadget article posted on WebCT (http://engadget.com/2009/01/19/belkin-pleas-for-mercy-over-paid-amazon-reviews-deception/), and the Auschwitz Article posted on WebCT (http://spiegel.de/international/germany/0,1518,742013,00.html)
Briefly answer each question below. The assignment is designed to prepare you for tutorial, so be prepared to discuss each item further in class. The TA will collect the assignment at the beginning of the tutorial and marks will be counted towards your assignment mark. After doing all the reading, you should be able to complete this assignment in 20 -30 minutes.
1) Briefly provide a definition for intention.
2) In Engineering, should interior intentions really matter? Are exterior actions more important?
3) In the Engadget article, the story covers how Michael Bayard paid people to write positive reviews for his company’s products on Amazon and other sites. Is this action any different than a commercial that claims the product is great?
How do intentions factor into this case?
Would your answer change if these paid reviewers would have written positive reviews regardless of being paid?
Would the action be worse if people were paid to write bad reviews...
TEST 1 Tutorials
Topic 1: The US Business Environment
1. Describe any THREE (3) external environments of business and discuss how these environments affect the success or failure of any organization.
2. Describe the different types of global economic systems according to the means by which they control the factors of production.
3. Show how markets, demand, and supply affect resource distribution in the United States.
4. Identify the elements of private enterprise and explain the various degrees of competition in the U.S. economic system.
Topic 2 : Business Organization’s Aim & Objectives
1. Define small business, discuss its importance to the U.S. economy, and explain popular areas of small business.
2. Explain entrepreneurship and describe some key characteristics of entrepreneurial personalities and activities.
3. Discuss the trends in small business start-ups and identify the main reasons for success and failure among small businesses.
4. Explain sole proprietorships, partnerships, and cooperatives and discuss the advantages and disadvantages of each.
5. Explain the basic issues involved in managing a corporation and discuss special issues related to corporate ownership.
Topic 3 : Nature of Management
1. Describe the nature of management and identify the four basic functions that constitute the management process.
2. Identify different types of managers...
...Tutorial questions: Week 1
Prior to discussing the following scenarios, a general discussion on CAMPARI - Character, Ability, Margin, Purpose, Amount, Repayment, Insurance/Security would be appropriate.
1. A 19 year old unemployed male is applying for a credit card with a limit of $1,500.
2. A 23 year old female on a disability allowance due to her physical disability is applying for a $2,000 line of credit to purchase a computer and associated hardware and software.
3. A 65 year old male pensioner with no significant savings applied for a line of credit to purchase a $25,000 motor vehicle.
4. A 35 year old single mother of two young children, one seven and the other four is applying for a $10,000 line of credit to pay off outstanding debts. The loan applicant does not hold a full time job and cannot afford to pay for child care.
5. Mr. A has been banking with you for over five years. His track record of repaying back his outstanding debts is not very promising as on several occasions you had to chase him for payment. He is now in full-time employment earning $60,000 a year and is applying for a $15,000 line of credit to take his family for a holiday to Bali.
6. A 16 year old applied for a credit card with a limit of $500 for school expenses.
7. A 22 year old international student applies for a line of credit of $4,000 to embellish his house with hi-fi and other related equipment. During the discussion he mentions that he will be...