Hypothesis Testing: Two Population Means and Two Population Proportions: Comparing Two Independent P
Susan Dean,
Barbara Illowsky, Ph.D.
This module provides an overview of hypothesis testing in situations where there are both two independent population means and known population standard deviations in statistics.
PreK Science Center 3
1.3.5 Diagrams for further analysis and quantitative model building To gain further understanding of the connectivity in a situation, a multiple cause diagram can be converted into a
sign graph by indicating whether the cause has a positive effect or a negative effect by adding the respective signs. Not all multiple cause diagrams lend themselves to this treatment as you need much greater knowledge of the situation to be able to be sure about the causal chains in a situation and the effects they are likely to have. Sign graphs are particularly useful
Liberia's Ongoing Water Crisis: Does Rhetoric Match Reality?
Learn more: http://pulitzercenter.org/projects/liberia-monrovia-water-population-urbanization
Despite continued promises from Liberia's government agencies to improve water conditions in the country, Liberia's water supply remains contaminated and inaccessible to many communities. Currently, 18 percent of all deaths in Liberia are related to illnesses caused by poor water and sanitation. In 2008, the Liberian government launched the Poverty Reduction Strategy to chart development and promised t
Ancient Refuge in the Holy Land
The team’s discoveries lead Freund to a radical new theory that he hopes will rewrite Holy Land history – could the treasure concealed in the cave be a long-lost relic of the Great Temple in Jerusalem destroyed by the Romans? Join NOVA for a fascinating detective story that will immerse you in the strong currents of archaeological controversy.
(54:17)
Hypothesis Testing: Two Population Means and Two Population Proportions: Comparing Two Independent P
Susan Dean,
Barbara Illowsky, Ph.D.
Some Rights Reserved
Verbal and Visual Word Association
Science Bulletins: In Hot Pursuit of Asteroids
Asteroids, the rocky remnants left over from the formation of planets in the Solar System, offer scientists a window into the dynamics of this early period. Scientists from around the world are currently exploring asteroids with a small fleet of unmanned spacecraft designed to collect images, samples, and other data.
Classify 2-D Shapes (Interactive)
Identify the properties of two dimensional figures using appropriate terminology.
Children Book Review: The Storm (The Lighthouse Family) by Cynthia Rylant, Preston McDaniels
This is a quick book review of the book The Storm by Cynthia Rylant. This gives a short synopsis. (00:53)
Cones, Cylinders, and Spheres (Interactive)
Classify cones cylinders, and spheres by base shape and lateral surface shape. Identify the net (two-dimensional representation) that corresponds to a rectangular prism, cone, or cylinder. Recognize the three dimensional figure represented by a net.
Obama on the BP Oil Spill
On April 20, 2010, an explosion ripped through BP’s Deepwater Horizon drilling rig off the coast of Louisiana, causing the worst oil spill in U.S. history. On June 15, President Barack Obama informs the nation about the current state of the disaster as experts struggle to stop the spewing oil. It would be another month before the leak was finally capped. (1:37)
Northeastern Fight Song - Orientation Session 1
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20.06.2012 – Langsam gesprochene Nachrichten
Trainiere dein Hörverstehen mit den Nachrichten der Deutschen Welle von Dienstag – als Text und als verständlich gesprochene Audio-Datei.
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Der frühere ägyptische Machthaber Husni Mubarak liegt nach einem Herzanfall im Koma und wird künstlich am Leben erhalten. Das berichteten unabhängigen Medien in Ägypten unter Berufung auf Ärzte. Zuvor hatte die staatliche Nachrichtenagentur MENA berichtet, der 84-Jährige sei bereits "klinisch tot". Das wurde dann aber vom regierenden Militär
Hollywood Cemetery: Inspiration for Art
Narrator shows footage of the Richmond cemetery and it's history. It has been used as the backdrop for musicians album covers as well as music videos. Many artists have used the cemetery as inspiration for their own photography and artwork. Part 12 in a series on Hollywood Cemetery. Length: 2:17
El despertar de los animales (cuento para niños en español)
Aquí tienen un cuento para niños que describe diferentes tipos de animales como el león y el elefante. Este video estaría bueno para una clase de primer o segundo grado. (7:29)
Diet composition is associated with endogenous formation of N-nitroso compounds in obese men
By: silviagratz
21M.220 Early Music (MIT)
Includes audio/video content: AV selected lectures. This course examines European music from the early Middle Ages until the end of the Renaissance. It includes a chronological survey and intensive study of three topics: chant and its development, music in Italy 1340-1420, and music in Elizabethan England. Instruction focuses on methods and pitfalls in studying music of the distant past. Students' papers, problem sets, and presentations explore lives, genres, and works in depth. Works are studie
Geograph reaches Three Million Pictures
Geograph having over 3 million live images on its website!
Etenswaren : Woordenschat Een huistaak of oefening op het verbinden van de Nederlandse woordjes met de Franse vertaling.
