Section 1: Review and Preview * Chapters 2 and 3 used “descriptive statistics when summarizing data using tools (such as graphs)‚ and statistics (such as mean and standard deviation) * Methods of inferential statistics use sample data to make an inference or conclusion about a population * Two main activities of inferential statistics are using sample data to… * Estimate a population parameters * Such as estimating a population parameter with a confidence interval
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Chapter 3 RESEARCH METHODOLOGY This chapter presents the methodologies and procedures applied for this study‚ together with the procedures and methods used in gathering data as well as the statistical tools used in the analysis and interpretation of the findings of the study. Project Design Descriptive design was employed in this study which involves observing the behavior of the subject without influencing it in any way. It involves collections of quantitative information
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− 10 = 3 x−1 Solution: x −2 − 10 = 3 x −1 x −2 − 3 x −1 − 10 = 0 Let y = x −1 and y 2 = x −2 The above equation becomes: y 2 − 3 y − 10 = 0 y 2 − 5 y + 2 y − 10 = 0 y ( y − 5) + 2( y − 5) = 0 ( y + 2)( y − 5) = 0 y = −2 y =5 −1 As‚ y = x x −1 = −2 x −1 = 5 ( x −1 )−1 = ( −2)−1 ( x −1 ) −1 = (5)−1 1 1 x=− x= 2 5 1 1 solution set = {− ‚ } 2 5 Mathematics Notes for FSc Part-I Prepared by Bilal 3. x 6 − 9 x3 + 8 = 0 Solution: x 6 − 9 x3 + 8 = 0 Let y = x 3 and y 2
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Chapter 3 METHODOLOGY OF STUDY AND SOURCES OF DATA Methods of Research The researchers will be using a Descriptive Type of Research Method‚ wherein the content of the whole will be purely a descriptive about the system. This would determine whether the study would be technically‚ operationally and economically feasible for the Inventory System of Jp & Joyce Rice & Feeds Retailer. Sources of Data This study covers the appropriate materials or instrument used in gathering data to
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| |Course Title |Descriptive and Inferential Statistics | |Prerequisite |MTHS001 (College Algebra) | |Credit/No. of Units |3 units | |Duration/Term
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Numerical and Verbal Hypothesis Statement In business‚ small and large or personal the ability to have information to make a decision is essential. “Hypothesis testing is used in both science and business to test assumptions and theories and ultimately guide managers when faced making decisions.” (Doane & Seward‚ 2007‚ page 347‚ Chapter 9). We reviewed and analyzed the data set‚ Real Estate and developed a hypothesis test. The hypothesis test can be described with the following steps: Step 1:
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Concepts 1. What is Inferential statistics? Inferential statistics uses observations of past occurrences or available data i.e. descriptive statistics to make decisions about future possibilities and/or the nature of the entire body of data. Inferential statistics draws conclusions or makes interpretations‚ predictions and inferences about a population based upon an analysis of a sample. 2. Give 2 different techniques which are used in descriptive statistics to represent the data. Tables or
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Chapter 3 RESEARCH METHODOLOGY This chapter presents the research design‚ the respondents of the study‚ the research instruments and the statistical treatment to be used in the presentation and analysis of the data. Methods of Research Used The descriptive method of research was used in this study. Descriptive method of research is a fact finding study with adequate interpretation of the findings. It describes what is. It describes with emphasis what actually exist such as current conditions
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The History of statistics can be said to start around 1749 although‚ over time‚ there have been changes to the interpretation of the word statistics. In early times‚ the meaning was restricted to information about states. This was later extended to include all collections of information of all types‚ and later still it was extended to include the analysis and interpretation of such data. In modern terms‚ "statistics" means both sets of collected information‚ as in national accounts and temperature
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Statistics is the study of the collection‚ organization‚ analysis‚ interpretation and presentation of data. It deals with all aspects of data including the planning of data collection in terms of the design of surveys and experiments. Descriptive statistics is the discipline of quantitatively describing the main features of a collection of information‚ or the quantitative description itself. Descriptive statistics are distinguished from inferential statistics (or inductive statistics)‚ in that
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