HONORS STATISTICS CH1 In an observational study, researchers simply observe characteristics and take measurements, as in a sample survey. In a designed experiment, researchers impose treatments and controls and then observe characteristics and take measurements. Data from a sample of citizens of a certain country yielded the following estimates of average TV viewing time per month for all the citizens. Answer: Inferential, because the statistics are used to make inference about the
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minimum number of variables represented in a bar chart is a.|1| b.|2| c.|3| d.|4| ANS: A PTS: 1 2. The minimum number of variables represented in a histogram is a.|1| b.|2| c.|3| d.|4| ANS: A PTS: 1 3. Which of the following graphical methods is most appropriate for categorical data? a.|ogive| b.|pie chart| c.|histogram| d.|scatter diagram| ANS: B PTS: 1 4. In a stem-and-leaf display, a.|a single digit is used to define each stem, and a single digit is used to define
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CHAPTER TWO DESCRIPTIVE STATISTICS: TABULAR AND GRAPHICAL METHODS CHAPTER OUTLINE AND REVIEW In Chapter 1, you were introduced to the concept of statistics and in exercise *6 of that chapter you were given a frequency distribution of the ages of 180 students at a local college, but you were not told how this frequency distribution was formulated. In Chapter 2 of your text, you were informed how such frequency distributions could be formulated and were introduced to several tabular and graphical
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| A Study on ‘Socio-economic Status of Rickshaw Pullers in Dhaka City’ | Course Name- Business Statistics ( F-503) | | Submitted to:Dr. M. Jahangir Alam ChowdhuryProfessorDept. Of FinanceUniversity Of DhakaSubmitted By:Md. Shafiul Azam (ID#26059)Student of ‘Business Statistics’ Spring, 2014EMBA (Finance) ProgramUniversity Of Dhaka Date Of Submission: 30th April 2014 | 1. Introduction The rickshaw is a small-scale local means of transport. It is generally a pedal-driven vehicle i.e. it
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recommend? b) What class interval should be suggest? c) What lower limit should be recommend for the first class. d) A frequency distribution e) A relative frequency distribution and a cumulative frequency distribution f) A histogram g) A frequency polygon h) Comment on the shape of the frequency distribution Q2 The following chart shows the hourly wages of a sample of operators in a factory. a) b) c) d) e) f) How many operators were studied? What is the class interval? About how many operators
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Graphical Representation of Data Tabulation is a good method of condensing and representing data in a readily understandable form, but many people have no taste for figures. They would prefer a way of representation where figures could be avoided. This purpose is achieved by the presentation of statistical data in a visual form. The visual display of statistical data in the form of points, lines, areas and other geometrical forms and symbols, is the most general terms known as Graphical Representation
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Qualitative vs. Quantitative Analysis When research is being conducted you must gather data. “Data are the facts and figures collected, analyzed, and summarized for presentation and interpretation” (Anderson, Sweeney & Williams, 2005, 5.) You must differentiate the type of data before you can analyze it. “There are basically two ways to go about an analysis, qualitative analysis and quantitative analysis” ("Difference between qualitative," 2011). “You can use both qualitative and quantitative
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gender | Unemployment rates, stock price, length of time for phone service | Types of display | Pie chart, bar graphs | Histogram | What is the difference between pie chart and bar graph? Pie charts: show percent (relative frequency) and sum to 100% bar groups: shoe counts (frequency) or percentage (relative frequency) in each category What is the difference between Histogram and bar chart? Similar to bar chart except it uses number line and the bars are connected to other Exercise: if there
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Chapter 2 Descriptive Statistics: Tabular and Graphical Methods Summarizing Qualitative Data Summarizing Quantitative Data Exploratory Data Analysis Crosstabulations and Scatter Diagrams Summarizing Qualitative Data Frequency Distribution Relative Frequency Percent Frequency Distribution Bar Graph Pie Chart Frequency Distribution A frequency distribution is a tabular summary of data showing the frequency (or number) of items in each of several nonoverlapping classes. The objective
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| 6 | 6 | 6 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | | 5 | 0 | 0 | 0 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 6 | 6 | 8 | | 6 | 0 | 0 | 2 | 2 | 2 | 8 | 8 | | 7 | 0 | 2 | 4 | 8 | | The stem and Leaf display could show the data’s shape and distribution. 2. There are 10 customers between age 20 and 29. 3. | Frequency distribution | 20-29 | 10 | 30-39 | 30 | 40-49 | 33 | 50-59 | 16 | 60-69 | 7 | 70-79 | 4 | 4. | Relative frequency distribution | 20-29 |
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