and limitations of basic crime indicators employed by the Uniform Crime Reporting (UCR) Program. These indicators can aid law enforcement administrators in the performance of their duties and serve as forerunners for the implementation of more sophisticated analytical tools. Volume‚ rate‚ and trend are basic crime indicators used in the UCR Program. Each statistic provides a different perspective of the crime experience known to law enforcement officials. Volume Crime volume is a basic indicator
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1.1 For the following situation‚ indicate whether the statistical application is primarily descriptive or inferential. “The manager of Ann’s Fabric Shop has collected data for 10 years on the number of each type of dress fabric that has been sold at the store. She is interested in making a presentation that will illustrate these data effectively.” Suggested Answer: This application is primarily descriptive in nature. The owner wishes to develop a presentation. He will most likely use charts
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CGE13101 Understanding Society Through Statistical Reasoning Tutorial 3 1. A wholesale appliance distributing firm wished to study its accounts receivable for two successive months. Two independent samples of 50 accounts were selected for each of the two months. The results have been summarized below. Frequency distribution for accounts receivable Amount March Frequency April Frequency $0 - under $2‚000 $2‚000 - under $4‚000 $4‚000 - under $6‚000 $6‚000 -
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2.41 a. Number of Internet Searches Percentages A few search results 23 First page of search results 39 First two pages 19 First three pages 9 More than first three pages 10 b. Pie charts and bar graphs are two ways of representing
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Chapter 2 – Data 1. The news. Answers will vary. 2. Molten iron. Who – 10 crankshafts at Cleveland Casting. What – The pouring temperature (in degrees Fahrenheit) of molten iron. When – Sometime before the 1995 journal article. Where – Cleveland. Why – To ensure the pouring temperature of molten iron is close to 2550 degrees. How – Not specified. Variables – Temperature (in degrees Fahrenheit) is a quantitative variable. 3. Walking in Circles. Who – 32 volunteers. What – Sex‚ height
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Managerial Functions are universal processes which characterize all group efforts-public or private‚ large scale or small scale. These functions include the organization‚ direction‚ coordination and control of human and technical resources to achieve the desired goals of an organization. (Gregorio‚ 1978) Gregorio‚ Herman C. (1978) School Administration and Supervision. Quezon City R.P. Garcia Publishing Company. How well an organization operates to realize its goal depends upon the degree of integration
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An alpha level of 0.05 is arbitrary and was set as a standard by scientists. One of the key concepts in hypothesis testing is that of significance level or‚ the alpha level‚ which specifies the probability level for the evidence to be an unreasonable estimate. Unreasonable means that the estimate should not have taken its particular value unless some non-chance factor(s) had operated to alter the nature of the sample such that it was no longer representative of the population of interest Remember
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2. Young Professional magazine was developed for a target audience of recent college gradu- ates who are in their first 10 years in a business/professional career. In its two years of pub- lication‚ the magazine has been fairly successful. Now the publisher is interested in expanding the magazine’s advertising base. Potential advertisers continually ask about the demographics and interests of subscribers to Young Professional. To collect this informa- tion‚ the magazine commissioned a survey
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1. When someone says they are going to us a sample to draw an inference about a population‚ it means that rather than survey the entire population‚ they’ll survey a smaller group and apply the results to a larger group. For example‚ if you take a neighborhood in a town with 100 homes and survey approximately 80% of the households and 76% of those families own multiple televisions you may infer that the majority of the 100 home neighborhood also own multiple televisions. A simple random sample
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Tutorial Questions for Exploratory Data Analysis – Summary Statistics & Graphs 1. Customers of a particular bank rated the service provided by the bank on a scale of one to ten‚ correct to one decimal point. The bank categorised their customers as either (1) Private Account holders or (2) Business Account holders. The information below summarises customer attitudes towards the quality of service provided by the bank. Use the output to answer the questions below. a) Briefly describe
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