1) Hypothesis: To statistically evaluate questions, we need to put forward a hypothesis, which is an unproven testable proposition or supposition that tentatively explains certain facts or phenomena. It is a statement of assumptions we have about the nature of populations or relationships. So, Hypothesis is an educated guess based on the material that one has read. Hypothesis testing involves the careful construction of two statements: the null hypothesis and the alternative hypothesis. To statistically
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statistics involves organizing, summarizing and illustrating statistical data. The objective is to show important characteristics of the data without drawing any conclusions. Inferential statistics involves using a representative subset of data (a sample) in order to draw conclusions about unknown characteristics of an entire set of data (a population). Population: The entire set of elements of interest (i.e. all humans
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disabled. * 1. (TCO A) At an outpatient testing center, a sample of 20 days showed the following number of cardiograms done each day. * 25 31 20 32 13 14 43 2 57 23 36 32 33 32 44 32 52 44 51 45 * a. Compute the mean, median, mode, and standard deviation, Q1, Q3, Min, and Max for the above sample data on number of cardiograms per day.
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1 EDUCATIONAL RESEARCH Unit Structure 1.0 Objectives 1.1 Introduction 1.2 Sources Acquiring Knowledge 1.3 Meaning, Steps and Scope of Educational Research 1.4 Scientific Method, aims and characteristics of research as a scientific activity 1.5 Ethical considerations in Educational Research 1.6 Paradigms of Educational research 1.7 Types of Research 1.7.a Fundamental 1.7.b Applied Research 1.7.c. Action Research 1.0 OBJECTIVES : After reading this unit, you will be able
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Study Questions--Hypothesis Testing 1. What are the appropriate statistical tests for the following: * The hypothesis is that the average campaign contributions, in dollars, of Democrats, Republicans, and Independents differ. * The hypothesis is that department store managers and boutique owners differ in the number of "yes" or "no" responses given to a question about interest in a new product. * A manager suspects that the effect of a recent advertising campaign has had different
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alternative hypothesis needed to test the contention. Null Hypothesis: Gander Mountain (u1) < Cabela’s (u2) Alternative Hypothesis: Gander Mountain (u1) > Cabela’s (u2) Utilizing the information from the outside consumer the null hypothesis that our brand (u1) prices are less than competitor bran (u2) is rejected, making the alternative hypothesis (u1) with higher prices to be accepted. Identify the most appropriate sample section technique to gather data for testing the hypothesis.
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In this Discussion board I will discuss the differences between quantitative and qualitative research. You will be given the difference between a hypothesis and a null hypothesis, as well as the research method that uses the uses a hypothesis. I will explain the key elements needed to develop a well written set of hypotheses. You will be able to identify what I believe are the key elements of a well written set of hypotheses and research question. A definition of the term research question will be
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of myths, superstitions, etcetera to explain the happenings around them. It was then that they eventually began to question the cogency of their knowledge on various matters such as why the sky is blue or why people display certain characteristics more than others. To satiate their curiosities of the world, they developed Science, which over time split into several branches. Thus, the scientific revolution began from which the Scientific Method originated. Over the past century, scientists have explained
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Study Questions--Hypothesis Testing 1. What are the appropriate statistical tests for the following: * The hypothesis is that the average campaign contributions, in dollars, of Democrats, Republicans, and Independents differ. * The hypothesis is that department store managers and boutique owners differ in the number of "yes" or "no" responses given to a question about interest in a new product. * A manager suspects that the effect of a recent advertising campaign has had different
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Regression of Renata Pharmaceuticals Ltd. Dependent and Independent variable data for regression are given below: Year | Market Share Price | ROE | DPS | P/E | NP | 2000.0 | 431.5 | 11.34 | 30.0 | 5.34 | 37.56 | 2001.0 | 615.25 | 17.43 | 40.0 | 4.12 | 67.23 | 2002.0 | 650.0 | 16.25 | 50.0 | 4.16 | 72.56 | 2003.0 | 1261.0 | 22.57 | 70.0 | 5.55 | 105.56 | 2004.0 | 3200.0 | 25.0 | 70.0 | 12.27 | 145.59 | 2005.0 | 3000.0 | 26.0 | 70.0 | 10.43 | 192.57 | 2006.0 | 3099.25 | 24.65 |
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