Step 1- Identify the problem Develop a problem statement- What are you going to investigate (use the 6 characteristics of a good problem statement) 1. Be interested in the problem 2. Have a manageable scope 3. Be comfortable in terms of the knowledge‚ time‚ and resources needed to investigate the problem 4. Be able to collect and analyze numerical data 5. Must be a practical or theoretical reason for you to research the problem 6. It must be ethical for you to investigate the problem
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t) P (X > s + t) P (X > t) e−λ(s+t) e−λt e−λs P (X > s) – Example: Suppose that the amount of time one spends in a bank is exponentially distributed with mean 10 minutes‚ λ = 1/10. What is the probability that a customer will spend more than 15 minutes in the bank? What is the probability that a customer will spend more than 15 minutes in the bank given that he is still in the bank after 10 minutes? Solution: P (X > 15) = e−15λ = e−3/2 = 0.22 P (X > 15|X > 10) = P (X > 5) = e−1/2 =
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Week 4 15.18 Sixty-four students in an introductory college economics class were asked how many credits they had earned in college‚ and how certain they were about their choice of major. Research question: At α = .01‚ is the degree of certainty independent of credits earned? Certaint Credits Earned | Very Uncertain | Somewhat certain | Very Certain | Row Total | 0–9 | 12 | 8 | 3 | 23 | 10 to 59 | 8 | 4 | 10 | 22 | 60 or more | 1 | 7 | 11 | 19 | Col Total | 21 | 19 | 24 | 64 |
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This pack of QNT 351 Week 2 Discussion Question 1 includes: What are the various methods one can use to identify the shape of data distribution collected for research study? Why it is important to know the shape of distribution? How it can be used in decision making? Provide examples other than those already posted in class. Deadline: ( )‚ Business - General Business I need tutorials from week 1-5 with all assignments!!! Please help me Listening isn’t enough; you must also
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Business Statistics Semester II 2008/2009 Chapter 1 Introduction of Business Statistics An important decision-making tool in business and is used in virtually every area of business. Among the more common meaning of the word are: 1) the science of gathering‚ analyzing‚ interpreting and presenting data 2) a branch of mathematics 3) a course of study 4) facts and figures 5) a death 6) sample measurement 7) type of distribution used to analyze data Statistics are broadly
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for stock 2 is a litter flatter than the two above. Justify with descriptive statistics and the histogram tools: Firstly use descriptive statistics to summarise the key features of stock1‚ stock2‚ and stock3 respectively. All the available output options were chosen and labels in the first row were chose as in the Appendix figure 4.1 descriptive statistics. The output are as follows: Figure 1.1 descriptive Statistics for Stock 1‚ 2‚ and 3 Stock 1 Stock 2 Stock 3
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& DeVeaux Chapter 1: Stats Starts Here Chapter 2: Data Key Vocabulary: Statistics data‚ datum variation individual respondent subject participant experimental unit observation variable categorical quantitative Calculator Skills: enter data in a list change a datum delete a datum name a new list clear a list delete a list recreate a list copy a list 1. Name three things you learned about Statistics in Chapter 1. 2. The authors claim that this book is very different from a
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BE01106 - BUSINESS STATISTICS ASSIGNMENT – PART I SEMESTER 2‚ 2014 _________________________________________________________________________ The complete BEO1106 assignment (all three parts) accounts for 20% of the overall assessment in the unit. This first part of the BEO1106 assignment is to be completed in your own time and must be submitted for correction in the tutorial of week 6. No time extensions will be granted although special consideration applications may be accepted from students
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QUANTITATIVE METHODS - STATISTICS ------------------------------------------------- (SUBJECT CODE: STA1114) ------------------------------------------------- Instructions to Students: 1. Assignment questions consist of: * Question One - 25% * Question Two - 25% 2. Assignment question must be combined into ONE (1) booklet‚ attached with “Assignment Submission Form” as the front cover‚ enclosed with the “Marking Criteria.” typed with double spacing
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Today‚ 564‚708 people in the U.S. are homeless (“2016’s Shocking Homelessness Statistics”). As we speak‚ the rate of homelessness continues to rise. There are many reasons for homelessness: national debt‚ natural disasters‚ and unemployment. Although national debt and natural disasters are important factors of homelessness‚ society mainly focuses on unemployment and limited job opportunities. In fact‚ society stigmatizes homeless people as lazy and hopeless individuals. For example‚ many people think
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