categories. It is important that data are organized to identify important characteristics. One way of rearranging data is through the stem-and-leaf plot. A stem-and-leaf plot is a display that organizes a set of data to show both its shape and its distribution. Each data value is split into a “stem” and “leaf”. The leaf is usually the last digit of the number‚ and the other digits to the left of the leaf form the stem. Example 2: The stem-and-leaf plot for the ages of farmer borrowers interviewed:
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Section 1-2 Ex. 26 Surgery vs. Splints – A study compared surgery and splinting for subjects suffering from carpal tunnel syndrome. It was found that among 73 patients treated with surgery‚ there was a 92% success rate. Among 83 patients treated with splints‚ there was a 72% success rate. Calculations using these results showed that if there really is no difference in success rates between surgery and splints‚ then there is about a 1 in 1000 chance of getting success rates like the one obtained
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The result founds that: 94.87% of all ads achieved at least 3% click-through rate which is insufficient to satisfy the AdVantage’s objective Differences in designers’ performance can be explained by designers’ dominance which is influenced by the frequency of performing specific type of advertisement There is enough evidence to conclude that there is a weak relationship between placement and click-through rate. Introduction The purpose of this report is to analyse data recorded by AdVantage and then
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do not allow us to reach to the conclusions beyond the data we have analyzed regarding any hypotheses we might have made. They simply describe our data. Measures of Central Tendency: these are ways of describing the central position of a frequency distribution for a group of data through: Mode: Sum of all observations divided by the number of observations. Median: Middle of data. Use with ordinal data or when data contains outliners. Mean: Most frequent observation. Use with nominal data.
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Max-Min 4. Finding the Frequency of each Class Interval by using mark Example2: Draw a Frequency Distribution Table by setting the Class Interval width to 5 with belows data. The data is the height of 36 Vocational Diploma students. xxx xxx xxx xxx xxx xx xx xxx xx xx xxx xx Direction: 1. Range = Max score - Min score = 180-152 = 28 2. Set Width or I =5 Number of Intervals = Range I Draw a Frequency Distribution Table Class Interval Mark Frequency (f) PAGE 20 Example3:
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Analytical tool An analytical tool is something used to analyze or "take a closer look at" something. It is normally a way to review the effectiveness of something. For example‚ Google offers a free web analytics tool that is used by Web Masters to track visitors on a given site. It allows Web Masters to see where visitors are coming from‚ how long they stay‚ what links they are reviewing‚ etc. Analytic Tool help with Tracking and Reports! Data flow diagram -A data flow diagram (DFD) is
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1.) What are the five guidelines for creating a survey? How would you describe them? Be Clear: ask questions that are easily understandable so that the respondents know how to answer them -Minimize Bias: do not allow questions to lead to‚ or be loaded on‚ a particular side of a debate or version of a problem -Allow for Disagreement/ Uncertainty: give the option for the respondent to say no‚ or I don’t know to a question -Don’t ask unanswerable questions: do not ask questions that do not pertain to
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4.1.6. Profile of Living in Kemang Magazine Media produced internally by Synthesis Residence Kemang is very diverse‚ including project profile handbook‚ website Synthesis Residence Kemang‚ also in-house Living in Kemang magazine. In-house Living in Kemang magazine is one of the public relations communication media products or public relations. The role of Living in Kemang magazine is very strategic because it can be a medium of information and communication to the audience‚ strengthening relationships
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probably not attributable to chance is: (Points : 1) | Type I error Type II error Statistical significance In the semi-quartile range | 5. A score that is likely to fall into the middle 68% of scores of a normal distribution will fall inside these values: (Points : 1) | . +/- 3 standard deviations +/- 2 standard deviations +/- 1 standard deviation semi-quartile range | 6. It is important to assess the magnitude or strength of
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volume ! ! -Discrete -OR- Continuous ! ! -it is called ratio because half of 10km ! ! is 5km‚ but half of 10*c isnʼt 5*c‚ there ! ! arenʼt ratios w/ dates or temps. STEM Stem & Leaf Display - Organizes data to show shape and the distribution How to construct: 1. Sort data in ascending order (0-10) - use calculator 2. Seperate into stem and Leaf (Label stem: tens‚ thousands‚ hundreds) 3. Group # w/ the same stems (stems in order) 4. Give title to your data Rules for Stems: 1
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