PEARSON’S PRODUCT-MOMENT CORRELATION COEFFICIENT ANSWERS TO EXERCISE 23 Question 1 The r value for the relationship between Hamstring strength index 60o and the Shuttle run test is -0.149. This r value shows a weak correlation between the two variables‚ as it is less than the 0.3 threshold for significance. Therefore‚ the r value is not significant. Question 2 Between r=1.00 and r=-1.00‚ there is no difference in terms of strength. Both values are on the extreme ends of the spectrum and signify
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Chapter 1 What Is Economics? 1) All economic questions are about A) how to make money. B) what to produce. C) how to cope with scarcity. D) how to satisfy all our wants. 2) An incentive A) could be a reward but could not be a penalty. B) could be a penalty but could not be a reward. C) could be either a reward or a penalty. D) is the opposite of a tradeoff. 3) An inducement to take a particular action is called A) the marginal benefit. B) the marginal cost. C) opportunity cost
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Statistics in Business Quantitative Analysis for Business University of Phoenix Tanya Bailey April 22‚ 2013 Statistics can sometimes be difficult for some individuals. Understanding the concept of statistics‚ which is known as the science of data‚ may help a person in the business world. This involves classifying‚ summarizing‚ analyzing‚ collecting‚ and interpreting numerical information. The information gathered from statistics can help startup companies‚ and even
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Statistics in Business QNT/351 William Modey Quantitative Analysis for Business Salonyia Fisher Summary Statistics is accurately defined as the study of the analysis‚ data collection‚ and organization of the data which is interpreted by a particular business field. Statistics main focus is usually dealing with the preparation procedure of the data collection in the course of developing surveys and creating experiments. When an organization uses statistics‚ it needs to be taken into consideration
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Omkar & Yaying Wednesday 5-6pm WEEK 3 BES PASS Descriptive Statistics Population - a set of all possible observations. Sample - a portion of a population. We often use information concerning a sample to make an inference (conclusion) about the population. Parameter - describes a characteristic of the population‚ eg: the population variance Statistic- describes a characteristic of a sample‚ eg: the sample variance Frequency Distribution and Histograms Class - a collection of
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CHAPTER 6 C2. Old Metamora Betty Shriver is the owner of Betty’s Crystal‚ a small shop that sells collectible glass figurines. Betty’s shop carries many items that she purchased from estate sales and regional auctions‚ but the shop also sells new crystal figurines from manufacturers such as Baccarat‚ Lalique‚ Orrefors‚ and Swarovski. The shop is located in Metamora‚ Indiana‚ which is a popular tourist destination for weekend travelers in the Midwest. The town of Old Metamora is a small historic
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Case Problem 1: National Health Care Association(Descriptive Statistics) The National Health Care Association is concerned about the shortage of nurses the health care profession is projecting for the future. To learn the current degree of job satisfaction among nurses‚ the association has sponsored a study of hospital nurses throughout the country. As part of this study‚ a sample of 50 nurses was asked to indicate their degree of satisfaction in their work‚ their pay and their opportunities for
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QMT2033 BUSINESS STATISTICS Assignment for mid -term break 1. Most of the information technology developers claim that wireless connection would give speed of at least 11 Mbps compared to wired connection. A sample of 105 computers using wireless connection shows it gives a mean of 11.7 Mbps and a standard deviation of 2.3 Mbps. a) Do you think that the wireless usage should be implemented? Test at 7% significance level). b) Repeat the test by using p-value approach. 2. A jack is usually used
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dependent? Provide a rationale for your answer. Independently due to the data being collected independently 2. t = −3.15 describes the difference between women and men for what variable in this study? Is this value significant? Provide a rationale for your answer. t = -3.15 describes mental health in this study. This is significant because mental health plays a big role in the outcome of MI patients. 3. Is t = −1.99 significant? Provide a rationale for your answer. Discuss the meaning of this result
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Statistics in Business Katherine Wolf QNT/275 April 3‚ 2015 Barry Adkins Statistics in Business Statistics is all about collecting numerical data‚ organizing it‚ and interpreting the data to form hypothesis. While interpreting the data we are able to draw all kinds of conclusions from weather forecasts to how much money a company is projected to make over the next year. There are different types of statistics that can be used for different outcomes. You have to first identify the
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