Results 1 to 10 of about 20,681,672 (284)

T test as a parametric statistic. [PDF]

Korean J Anesthesiol, 2015
In statistic tests, the probability distribution of the statistics is important. When samples are drawn from population N (µ, σ(2)) with a sample size of n, the distribution of the sample mean X̄ should be a normal distribution N (µ, σ(2)/n). Under the null hypothesis µ = µ0, the distribution of statistics [Formula: see text] should be standardized as ...
Kim TK.
europepmc   +5 more sources

Minimal Spanning Tree application to determine market correlation structure

Ho Chi Minh City Open University Journal of Science - Engineering and Technology, 2023
Determining the structure of market correlation is an important topic in theory and experiments. Under the impact of the Covid-19 pandemic, the market structure may be deformed. Therefore, this study examines the pandemic’s impact on the market structure.
Bui Thanh Khoa, Tran Trong Huynh, Vo Dinh Nhat Truong, Le Vu Truong, Do Bui Xuan Cuong, Tran Khanh   +5 more
doaj   +1 more source

Identification and experimental validation of key extracellular proteins as potential targets in intervertebral disc degeneration

Bone & Joint Research, 2023
Aims: This study aimed, through bioinformatics analysis and in vitro experiment validation, to identify the key extracellular proteins of intervertebral disc degeneration (IDD).
Guang-Zhi Zhang, Lei Li, Zhang-Bin Luo, Cang-Yu Zhang, Yong-Gang Wang, Xue-Wen Kang   +5 more
doaj   +1 more source

Do radiological findings around the Fitmore stem change over time?: radiolucency around the short hip stem disappears within a few years: a retrospective study

Bone & Joint Open, 2022
Aims: Although the short stem concept in hip arthroplasty procedure shows acceptable clinical performance, we sometimes get unexplainable radiological findings.
Hideki Fujii, Tetsuo Hayama, Toshiomi Abe, Motoi Takahashi, Ayano Amagami, Yohei Matsushita, Takuya Otani, Mitsuru Saito   +7 more
doaj   +1 more source

Improving the cementation of the tibial component in knee arthroplasty: a study of four techniques in the cadaver

Bone & Joint Research, 2021
Aims: The main objective of this study is to analyze the penetration of bone cement in four different full cementation techniques of the tibial tray.
Juan Ramón Rodríguez-Collell, Damian Mifsut, Amparo Ruiz-Sauri, Luis Rodríguez-Pino, Eva María González-Soler, Alfonso Amador Valverde-Navarro   +5 more
doaj   +1 more source

Note on the t-Test [PDF]

Proceedings of the National Academy of Sciences, 1942
Not ...
Wilson, E., Worcester, J.
openaire   +2 more sources

Thickness of simple calcaneal tuberosity avulsion fractures influences the optimal fixation method employed

Bone & Joint Research, 2023
Aims: This study aimed to establish the optimal fixation methods for calcaneal tuberosity avulsion fractures with different fragment thicknesses in a porcine model.
Chunliang Wang, Shih-Jung Liu, Chung-Hsun Chang   +2 more
doaj   +1 more source

Telemedicine in orthopaedic surgery during the COVID-19 pandemic: patient attitudes and barriers

Bone & Joint Open, 2021
Aims: This study assesses patient barriers to successful telemedicine care in orthopaedic practices in a large academic practice in the COVID-19 era. Methods: In all, 381 patients scheduled for telemedicine visits with three orthopaedic surgeons in a ...
Ramakanth R. Yakkanti, Anil B. Sedani, Lauren C. Baker, Patrick W. Owens, Seth D. Dodds, Amiethab A. Aiyer   +5 more
doaj   +1 more source

MODULE’S INFLUENCE ON BASIC ENGINEERING MECHANICS’S LEARNING OUTCOMES OF CIVIL ENGINEERING STUDENTS

Jurnal Pensil, 2023
Modules are teaching materials that contain learning objectives, learning material/substance and evaluation so that students can learn independently and be more active in learning.
Muhammad Rahman Rambe, Rizky Febriani Pohan   +1 more
doaj   +1 more source

On the T-test

Statistics & Probability Letters, 2022
The $T$-test is probably the most popular statistical test; it is routinely recommended by the textbooks. The applicability of the test relies upon the validity of normal or Student's approximation to the distribution of Student's statistic $\,t_n$. However, the latter assumption is not valid as often as assumed.
openaire   +2 more sources