Hypothesis testing theory

Part 1 of ebook "Statistics and analysis of scientific data (Second edition)" provides readers with contents including: Chapter 1 - Theory of probability; Chapter 2 - Random variables and their distributions; Chapter 3 - Three fundamental distributions - binomial, Gaussian, and poisson; Chapter 4 - Functions of random variables and error propagation; Chapter 5 - Maximum likelihood and other methods to estimate variables; Chapter 6 - Mean, median, and average values of variables; Chapter 7 - Hypothesis testing and statistics;...

158p daonhiennhien 03-07-2024 4 1   Download

This study evaluates the factors influencing environmental accounting in leather shoe manufacturing companies in Vietnam. Primary data were collected from February 2023 to May 2023, with 283 valid observations for formal research. The analytical and data processing tools used include descriptive statistical methods, reliability testing of scales, exploratory factor analysis (EFA), and hypothesis testing using the least squares method.

12p longtimenosee09 08-04-2024 4 1   Download

Part 1 of ebook "Asymptotic theory for econometricians (Revised edition)" provide readers with content including: Chapter 1 - The linear model and instrumental variables estimators; Chapter 2 - Consistency; Chapter 3 - Laws of large numbers; Chapter 4 - Asymptotic normality;...

121p dieptieuung 19-07-2023 7 2   Download

Ebook Mathematical statistics with applications: Part 1 presents the following content: Chapter 1: descriptive statistics, chapter 2: basic concepts from probability theory, chapter 3: additional topics in probability, chapter 4: sampling distributions, chapter 5: point estimation, chapter 6: interval estimation, chapter 7: hypothesis testing, chapter 8: linear regression models.

489p haojiubujain02 03-07-2023 6 3   Download

It has been well-established, both by population genetics theory and direct observation in many organisms, that increased genetic diversity provides a survival advantage. However, given the limitations of both sample size and genome-wide metrics, this hypothesis has not been comprehensively tested in human populations.

7p vinarcissa 21-03-2023 2 1   Download

Continued part 1, part 2 of ebook "Mathematical statistics for economics and business" provide readers with content about: point estimation theory; point estimation methods; hypothesis testing theory; hypothesis testing methods and confidence regions; math review appendix - sets, functions, permutations, combinations, notation, and real analysis;...

375p damtuyetha 16-02-2023 5 3   Download

The present study evaluates the effect of test format on the performance of reading comprehension, which is the integrated format. Unlike the separation of text and test questions into two sections in the split format, the main modification of the integrated format is that the relevant text is integrated with test questions in each reading task. Through the comparison between learners’ performance in the two test formats, this study tests the hypothesis that the overall test performance and task performance in the integrated format are higher than performance in the split format.

10p nguaconbaynhay11 07-04-2021 16 1   Download

In this paper we will elaborate and give support to Manski’s central message in“Statistical decision theory should supplant hypothesis tesing” (Manksi [15]; see also Manski [16]). Decisions should take the place of testing. This review should benefit practioners in empirical research of econometrics and in statistics in general. We emphasize that Wald’s Statistical Decision Theory should be used in empirical research instead of “traditional” hypothesis testing (both frequentist and Bayesian testing), since hypothesis testing is only a one-sized-fits-all way to make decisions...

22p angicungduoc9 04-01-2021 12 1   Download

This study aims at investigating the effects of financial transparency on SMEs’ value. The main purpose of research work is to test hypothesis that there is no significant relationship between financial transparency and SME value improvement as indicated by interest coverage ratio and Tobin Q. Agency theory is a useful framework for designing financial transparency tools. Further the study applied census survey for one hundred twenty-eight SMEs listed in AIM Italia. The time under study was from 2014 to 2018.

1p chauchaungayxua2 19-01-2020 14 0   Download

This paper aims to revisit the Porter hypothesis associated with TFP convergence using a panel data set of manufacturing SMEs in Vietnam covering 2005 - 2015. It contributes to the literature by giving more deeply understanding about TFP convergence of SMEs. Especially, this is the first one examining the link between environmental practices and TFP convergence. We apply the stochastic method developed by Levinsohn and Petrin (2003) to estimate stochastic TFP.

38p chauchaungayxua2 04-01-2020 11 1   Download

This hypothesis is theoretically appealing and may measure the extent of financial efficiency, and the power of arbitrage, meaning that financial anomalies, due to fads for example, little exist. This paper looks upon fourteen samples of investments for which the difference in maturity is three months and provides various tests that support the hypothesis of risk neutrality.

18p vimadrid2711 18-12-2019 29 1   Download

In this chapter, the following content will be discussed: Economic theory provides a framework for analyzing the causal relationship between government policy and individuals’ behavior; empirical work tests hypothesis arising from economic theory to determine if it is consistent with real-world phenomena; various methods for conducting empirical work exist.

14p thiendiadaodien_8 24-02-2019 40 2   Download

(bq) part 2 book "biostatistics" has contents: estimation theory, hypothesis testing, further statistical tests for the distribution and parameters of random variables, further tests on correlation, statistical tables.

95p bautroibinhyen19 02-03-2017 34 6   Download

This intuitive yet rigourous introduction derives the core results of digital communication from first principles. Theory, rather than industry standards, motivates the engineering approaches, and key results are stated with all the required assumptions. The book emphasizes the geometric view, opening with the inner product, the matched filter for its computation, Parseval's theorem, the sampling theorem as an orthonormal expansion, the isometry between passband signals and their baseband representation, and the spectral-efficiency optimality of quadrature amplitude modulation (QAM).

0p ringphone 06-05-2013 59 6   Download

Computational linguistics is generally considered to be the branch of engineering that uses computers to do useful things with linguistic signals, but it can also be viewed as an extended test of computational theories of human cognition; it is this latter perspective that psychologists find most interesting. Language provides a critical test for the hypothesis that physical symbol systems are adequate to perform all human cognitive functions.

2p bunrieu_1 18-04-2013 44 3   Download

.labor, to shore up union power, or to restrict the entry of low-skilled workers into the U.S. As the growth in the college premium slowed in the mid-1990s, education- and training-related policies received less attention, but in light of more recent upturns, they may regain popularity. Studies testing the SBTC theory have produced mixed results. The early case in support of the hypothesis was based primarily on the observation of concurrent trends at the macro leve

0p chieckhanpieu 25-03-2013 65 2   Download

As science, ecology is often accused of being weak because of its basic lack of predictive power (Peters 1991) and the many ecological concepts judged vague or tautological (Shrader-Frechette and McCoy 1993). Also, important paradigms that dominated the ecological scene for years have been discarded in favor of new concepts and theories that swamp the most recent ecological literature (e.g., the abandoning of the island biogeography theory in favor of the metapopulations theory; Hanski and Simberloff 1997).

476p phoebe75 01-02-2013 80 5   Download

This argument forms an important facet of what is usually referred to as parental investment (PI) theory, a subset of life history theory. To test the hypothesis that parents experiencing resource constraints will invest differentially in offspring, and that the patterns of investment accord with PI theory, a number of health, nutrition and social variables were measured for all children between the ages of 5 and 15 living in a Yanomamö village on the Upper Orinoco River in southern Venezuela.

14p connhobinh 10-12-2012 59 1   Download

This compendium aims at providing a comprehensive overview of the main topics that appear in any well-structured course sequence in statistics for business and economics at the undergraduate and MBA levels. The idea is to supplement either formal or informal statistic textbooks such as, e.g., “Basic Statistical Ideas for Managers” by D.K. Hildebrand and R.L. Ott and “The Practice of Business Statistics: Using Data for Decisions” by D.S. Moore, G.P. McCabe, W.M. Duckworth and S.L. Sclove, with a summary of theory as well as with a couple of extra examples.

0p sofia11 15-05-2012 166 45   Download

C H A P T E R 16 Test driving – sampling theory, estimation and hypothesis testing Chapter objectives This chapter will help you to: ■ ■ ■ ■ ■ ■ ■ understand the theory behind the use of sample results for prediction make use of the t distribution and appreciate its importance construct and interpret interval estimates of population means and population proportions work out necessary sample sizes for interval estimation carry out tests of hypotheses about population means, proportions and medians, and draw appropriate conclusions from them use the technology; the t distribution, estimat...

57p leslienguyen 21-11-2010 86 20   Download