technology‚ we cannot imagine how the world would function without computer system as every profession is in one way or another facilitated by the use of computer. Computer is an electronic device with sets of programs and application installed to facilitate users. Computer is used in almost every field that needed accuracy‚ advance administration‚ time saving and computer could accomplish many tasks easily within a short period of time. Computers are being used in almost every medical institute‚ hospitals
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Week 4 Exercises Chapter 5 – Section 1. Question 5 To perform a certain type of blood analysis‚ lab technicians must perform two procedures. The first procedure requires either one or two separate steps‚ and the second procedure requires either one‚ two‚ or three steps. a. List the experimental outcomes associated with performing the blood analysis. Answer: There are two procedures that a lab technician must perform. The first procedure requires either one or two separate steps‚ which could be named
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2/8 (Friday) Standard Deviation cont’d Example: Amount of money earned by new immigrants Sample: 12‚ 15‚ 16‚ 20‚ 25‚ 36‚ 40 Step 1: Find the mean * x̄=164/7 * mean is 23.4 Step 2: Find how much each observation deviates from the mean * 12 - 23.4 = -11.4 * 15 – 23.4 = -8.4 * 16 – 23.4 = -7.4 * 20 – 23.4 = -3.4 * 25 – 23.4 = 1.6 * 36 – 23.4 = 12.6 * 40 – 23.4 = 16.6 * Note: all observations below mean will be negative‚ all above will be positive Step
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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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18. Based on a simple random sample of one hundred an analyst estimates the average hourly wage earned by workers in a city to be $30 and computes the margin of error to be $5. Can we conclude from this that most workers there earn between $25 and $35 per hour? Is the right interpretation for the margin of error? 23. Polls showed the two main candidates in the 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll
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Module 1 Suppose you hear an "old-timer" say‚ "Why‚ in my day‚ kids were much more respectful and didn’t cause as much trouble as they do nowadays!" Formulate a hypothesis related to this statement that you could test. How would you test it? The old-timer are the older person in their 70s or 80s at this time. I would compare the age when this old timer is raising his own children . what actually age he may be‚ let say‚ 25 years old if he was born in 1940 by the year 1965 to determine respectfulness
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Chapter 3 Fluid Statics: Definitions Statics: ∑F = 0. In statics we have only pressure as surface force and weight as body force. Thus‚ when fluids are still‚ the pressure is balanced by the fluid weight. No relative motion between adjacent fluid layers. Shear stress is zero Only _______ can be acting on fluid surfaces Gravity force acts on the fluid (____ force) Applications: Pressure variation within a reservoir Forces on submerged surfaces Buoyant forces 9/4/2013 1 Pressure Pressure is defined
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1. A density curve consists of a straight line segment that begins at the origin (0‚ 0) and has slope of 1. a. Sketch this density curve. What are the coordinates of the right endpoint of the segment? (Note that the right endpoint should be fixed so that the total area under the curve is 1. This is required for a valid density curve.) b. Determine the median‚ the first quartile (Q1)‚ and the third quartile (Q3). c. Relative to the median‚ where would you expect the mean of the distribution to lie
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median* C. mode D. standard deviation 3. A "codebook" is A. only used in existing statistics research. B. a document that tells the researcher where variables are located in the data file and what numbers go with variable attributes* C. the set of instructions that tell interviewers or experimenters how to treat respondents or subjects. D. an unnecessary part of data analysis since computers were invented. 4. Which of the following is/are aimed primarily at explanation? A.
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(SY16C) -INTRODUCTORY STATISTICS FOR THE BEHAVIOURAL SCIENCES SUMMER SCHOOL 2012/2013- COURSE OUTLINE Lecturer: Ayesha Facey Office: Room 46‚ Faculty of Social Sciences Office #: 970-6324 E-mail: ayeshafcy@yahoo.com COURSE OBJECTIVE This course aims to introduce students to basic univariate and bivariate statistics. A student who successfully completes this course will possess a reasonable level of knowledge of basic statistics and their interpretations
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