What is the meaning of a null hypothesis being rejected?

Answers

Answer 1

Answer:

If there is less than a 5% chance of a result as extreme as the sample result if the null hypothesis were true, then the null hypothesis is rejected. When this happens, the result is said to be statistically significant .


Related Questions

4. Do you think 20 ml of soda has a greater mass than 20 ml of water? Design an experiment to test this. Explain how you will
determine which one (soda or water) has the most mass.

Answers

Yes, in my opinion 20 ml of soda has a greater mass than 20 ml of water due to higher weight of soda particles as compared to water.

It is because solid substance is more denser than liquid. In 20 ml of soda, there are solid particles in it which make it heavier and denser than liquid water. In order to design this, we have to take two solutions, one having soda whereas the other has water in liquid form with equal concentrations. Then we have o find the density of both solution, that solution which has more density is considered as heavier than other solution. The density of soda is 2.54 g/cm³ whereas the density of water is 1 g/cm³ so it is clear that soda is denser than water.

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Which would be considered a reliable source?(1 point)

an opinion column in your favorite magazine


an article from a scientific journal

a blog written by an anonymous author


a biology textbook from 1920

Answers

When looking for updated and reliable information, you always need to point to scientific journals, magazines, encyclopedias, or textbooks recently printed or published. In the exposed example, the most reliable source is an article from a scientific journal.  

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When looking for updated and reliable information, you need to be careful with the source, authors, and publishment dates.

In general, scientific journals, magazines, encyclopedias, or textbooks are sources of reliable information. The material exposed on these sources has been previously checked and evaluated by a group of people trained and capable to do so. If your favorite magazine is not a scientific one, you should look for another source.

You also want to consider the authors. Some researchers are very well known, and their publications probably reflect years of investigation. By looking for these authors´ publications you will ensure a good source. You should use a blog written by a well-known author, but not a blog that is written by an anonymous one.

You also need to consider that your source should be recently printed or published. Science is very dynamic and continuously changes. Discoveries always replace old information. So when looking for a reliable source, you need to look for recent publications. A biology textbook from 1990, although it is a reliable source, it probably has old information.

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how do you think different intelligences might affect how people learn best

Answers

Answer:

The multiple intelligence theory can draw students back into learning. Using the different intelligences to teach a concept allows each of your diverse learners a chance to succeed at learning. Teaching to a student's strength helps increase learning success.The theory of multiple intelligences confirms these empirical experiences and can provide educators with a framework and tools that will allow them to better meet the needs of the different types of learners present in every classroom.

Explanation:

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classification of plant moss with two characteristics

Answers

Answer:

Mosses slow down erosion, store moisture and soil nutrients, and provide shelter for small animals and food for larger herbivores. Mosses have green, flat structures that resemble true leaves, which absorb water and nutrients; some mosses have small branches.

an international body of anatomists convened in 1998 to standardize anatomical terminology. the result was a book known as the ______, which accepts both latin and common english equivalents.

Answers

The result was a book known as the Terminologia Anatomica, which accepts both Latin and common English equivalents.

Terminologia Anatomica is a book that contains widely internationally accepted terminology for human gross and/or topographical anatomy both in Latin and English.

Terminologia Anatomica was jointly produced by the Federative Committee on Anatomical Terminology and the International Federation of Associations of Anatomists.

This book represents the international standard of human anatomic terminology.

Terminologia Anatomica divides anatomical structures into different parts which include, among others: General anatomy (anatomia generalis), Joints (juncturae), Bones (ossa), Muscles (musculi), Digestive system (systema digestorium), etc.

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What statement correctly explains the polarity of the water molecule

Answers

Answer:

hydrogen has smaller pole and oxygen have bigger

How does earthquake bring about change in the topography of the earth

Answers

Answer:

Earthquake cause a massive impact like cracking the grounds and creating a big change in the map and the world

why Should A Potometer be Allowed to stand before starting the Experiment​

Answers

It is crucial to avoid air bubbles in the assembled potometer. The plant stem must be cut under water to prevent airlocks forming in the xylem. All fittings must be tight so that the only way the apparatus can lose water is by the plant transpiring.

It is crucial to avoid air bubbles in the assembled potometer. The plant stem must be cut underwater to prevent airlocks forming in the xylem. All fittings must be tight so that the only way the apparatus can lose water is by the plant transpiring.

What is potmeter?

An instrument used for measuring rate of Transpiration occurring from lower surface of leaf.

Thus, All fittings must be tight so that the only way the apparatus can lose water is by the plant transpiring.

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hellppppppppppppplpp​
I WILL GIVE BRAINLIEST

Answers

Explanation:

if iodine is added to a solution and it turns blue-black that means carbohydrate is present

What is the greatest advantage of using different methods that result in the same outcome?

Answers

Explanation:

I think that if you use different methods that result in the same outcome you will have more chances of getting the required result. This is because you don't know whether one of your methods might work or not, so having many of them help you.

Not sure if I'm correct or not but I hope this helps

how has malaria affected the economic in Cambodia

Answers

they needed healthcare

Explanation:

they had to spend more on health care and food and all that's why they lost more money

I will give brainliest

1. Compare the density of stomata between the two varieties of olive plant A and B


2. Under identical environmental conditions the rate of water uptake in plant A is higher than plant B

Answers

Plant A has more stomata than plant B and therefore plant A can take more water, thereby under identical environmental conditions, the rate of water uptake in plant A is higher than in plant B (questions 1 and 2).

What are plant stomata?

Plant stomata are structures located on the leaves which serve to absorb water and they also serve to the gas exchange processes during photosynthesis, which is fundamental because one output of this process is oxygen while the input is carbon dioxide.

The amount of plant stomata per unit of area is fundamental to determining the water intake rate that a plant has in certain environmental conditions.

Therefore, with this data, we can see that plant stomata are required to take water and also for gas exchange during photosynthesis, thereby a plant with more stomata will be able to obtain more water.

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Nitrogen fixing bacteria living in the roots of legumes to absorb sugars from them is an example of:
A. Commensalism
B. Predation
C. Parasitism
D. Mutualism

Answers

C. Parasitism

Because one individual is harmed while the other individual benefits.

Nitrogen-fixing bacteria living in the roots of legumes to absorb sugars from them is an example of mutualism. The correct option is D.

What is mutualism?

Mutualism is an interaction between two organisms, in which both organism live together and help each other. In an ecosystem, different organisms live together as they affect the life of each other.

Nitrogen-fixing bacteria are the bacteria that are present in the roots of legume plants, like cereal plants. They convert the nitrogen of the environment into nitrate in the soils.

So, living in the roots of the legume plants, they get nutrition from the roots, and they give atmospheric nitrogen to the soil, which increases the nutrition of the soil and the plants.

Thus, the correct option is D. Mutualism.

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science skill 8 two types of variables

Answers

What is your question?

Explain how political aspect of a country affect health population and environment?​

Answers

Answer:

Relationship of political aspect with health, population and environment: Political aspect includes the policies formulated by different administrative sectors and government. The population policies, health policies and environment policies are approved in the parliament.

hope this helps

Explanation:

A central idea of biology, protein synthesis, occurs in what order?

Answers

B is the correct answer

7. Applying Information Assign the various toppings you put on pizza to the appropriate
domains and kingdoms of life.

Answers

Most common pizza toppings belong to eukarya domain and three kingdoms: animal vegetal, and fungi.

In biology, there are three domains archaea, eukarya, and bacteria.

Eukarya is the domain that groups all organisms formed by cells with a defined nucleus. Additionally, Eukarya groups together the kingdoms protist, animal, vegetal and fungus. All of the most common topings are within the Eukariota domain. For example:

chicken (animal)meat (animal)cheese (animal)mushrooms (fungi)sausages (animal)onion (vegetable)tomato (vegetable)corn (vegetable)pineaple (vegetable)pepperoni (animal)

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SOMEONE ANSWER PLEASE!

As a group, you and three other students must make a presentation on an animal. Which option is the best example of your group coming to a consensus on the presentation topic?


A) A group member is selected as the team leader and the team leader chooses the presentation topic.


B) The group cannot agree on what animal to choose so your teacher chooses your presentation topic.


C) The group writes options on slips of paper, puts them in a hat, and the paper that is selected will be the presentation topic.


D) Each member gets a vote and the animal with the most votes will be the presentation topic.


please help, i'm really confused!

Answers

Answer:

option (D) is the best according to me

What are two ways you can set up an experiment to measure the rate of photosynthesis?

Answers

Answer:

Measuring photosynthesis via the uptake of carbon dioxide. ...

Measuring photosynthesis via the production of oxygen. ...

Measuring photosynthesis via the production of carbohydrates. ...

Measuring photosynthesis via the increase in dry mass. ...

Investigating the light-dependent reaction in photosynthesis.

4. Ciertos individuos en su escuela son líderes. ¿Qué hace que la gente siga a los demás? Una encuesta realizada indicó que
el rasgo que más valoraban los estudiantes en un amigo era la honestidad. ¿Por qué cree que esto es cierto?

Answers

Answer:

Mucha gente sigue a los demas porque piensan que lo que muchos siguen la mas alta alta probalidad tiene de estar correctos y tambien creen que ellos son bien popular.

Explanation:

Questions
1. What are the levels of organization?
2. What is the relationship between a cell, tissue, organ, organ system and organism?
3. Why don't levels of organization apply to unicellular organisms?
4. How would organelles fit into the levels of organization?
5. Draw a diagram that would help you visualize the relationship between the five
levels of organization.

Answers

Answer:

cell

tissue

organ

system

human organism

Explanation:

unicellular organisms only have one cell since two or more cells form a tissue their level of organization is restricted to cell

cell

two or more cells form a tissue

two or more tissue forms an organ

two or more organs form a system which must work in coordination for efficiency

two or more systems make up a human organism

Overview of photosynthesis, using the detailed inner structure of a leaf.

Answers

Answer:

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.

Explanation:

why are Polar bears are much larger than American black bears

Answers

This is because of natural selection; since polar bears live in a rough environment, natural selection gives them more fur, more muscle, and can go longer without food

2. A nucleus contains tiny rod-shaped
boll bodies. What are they called?

Answers

A nucleus is something that idek what ur talking abt
the answer is nucleus

How would you change the flowing water model to make it more like actual geologic process on Earth?

Answers

Answer:

Options include building dams to trap water from rivers, pumping water from the ground, and dredging for new sources of water. Each of these activities can change the timing and amount of freshwater that enters our estuaries, and natural drought cycles only make their effects worse

hope it helped!

(3) The fabric made from these fibres is comfortable to wear, does not get wrinkled easily and easy to wash​

Answers

Answer:

polyester

Explanation:

Answer:

Polyester is used to make fabric. Fabric made from this fibre does not get wrinkled easily. It remains crisp and is easy to wash. It is used for making bottles, utensils, films, wires and many other useful products.

Explanation:

Which of the following is NOT a response that the body would have to a stimuli?
A. physical response
B. chemical response
C. creating a feeling
D. evolving the body​

Answers

Answer:

Explanation:D

The CNS, which is made up of the brain and spinal column, coordinates how the body reacts to stimuli.Motor neurones are used by the CNS to communicate with an effector.A hormone or a muscle in the body that causes a response is known as an effector.

How does your body respond to stimuli?

The creating feeling is not involve stimuli .Anything that makes you react, like the smell of food making your mouth moisten, is a stimulus.Body movements such as muscle contractions, gland secretions, or brain operations are responses. The stimulus is a change in the environment, and the response is how the organism responds to it.In single-celled organisms, the reaction is a result of a cell characteristic...An organism's senses, which are delicate components of his body, respond to stimuli. The sensory input from the outside world consists of touch, pain, vision, smell, taste, sound, and balance (equilibrium).External changes trigger the activation of these sensory impulses.Touch and pain: The stimulus that can have a significant impact on the body is pain.The definition of a response is a response to an activity.The way a person responds to an ink stain on a card is an illustration of response.An answer to a question is what is meant by a response.What follows a question in a question-and-answer session is an illustration of a response. Animals react to a stimuli in order to maintain their current circumstances.Examples of this include leaving a place that is too chilly and moving somewhere warmer.if hungry, moving in the direction of food. The body's automatic responses to a stimulus are known as physiological responses.The natural and instinctual physiological reactions we encounter every day are familiar to most of us, but we frequently ignore them. The various tastes of the various foods you eat are an example of chemical stimulation.When chemical messengers (hormones) interact with cells, biological stimuli are observed. To preserve homeostasis, your body also needs to keep secure and defend itself.In order to preserve homeostasis, the body reacts to stimuli.The body quickly resumes its normal state as a result of these intricate responses.We would get frequent fevers and other illnesses if they didn't.

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When a fan is moving is convection, conduction, or raditation, and WHY?

Answers

Answer:

Moving of fan is convection.

The faster moving air from the fan displaces the warmer air that is in direct contact with our skin. This enhances the rate of convective heat transfer, which means we feel cooler.

what happens to jay’s motion at 30 minutes into his run

Answers

Answer:

Jay's speed-7.333 yd/s

Zeke's speed- 7.0 yd/s

Zeke's time-31.43 seconds

Step-by-step explanation:

-Speed is defined mathematically as distance over time.

-Given the distance as 220 yds and Jay's time as 30sec, her speed is:

#Given that  Jay wins the race by 10yds, it means that Zeke was at 210 yds when Jay finished:

-Find Jay's time at d=210 yds:

#Zeke's speed for the race can now be calculated    as:

#Time it takes for Zeke to finish:

Hence, it takes Zeke 31.43 seconds to complete the dash.

what is meant by environment​

Answers

Answer:

Environment means anything that surround us. It can be living (biotic) or non-living (abiotic) things. It includes physical, chemical and other natural forces. Living things live in their environment.

Explanation:

I'm not sure but hope it helps!

Answer:

environment is the the surroundings or conditions in which includes living and non-libing things.

Have a great dayy

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Consider an experiment in which subjects are given a pill to test its effectiveness in reducing the duration of a cold. Which of the following is the best way to treat the control group.A. Give the control group two pills instead of one.B. Do nothing with the control group.C. Give the control group a pill that looks like the test pill but does nothing Help me dudeeeeeeeee Select the 3 ANTONYMS for incentivedeterrentblockpreventionmotivationencouragementstimulusdissuasionattraction Benny thinks of a number, subtracts 18 from it, and divides the difference by 3, the result is (-4). What is the number? Solve Y^2 +9y+2=8y+58 On a number line is 7/3 located between 2 and 3? The coordinates of point T are (0,5). The midpoint of ST is (4, -5). Find the coordinate of point S what three qualities do you think are most important in a friend? Why? what does an observation use write a letter to your class teacher telling them three changes you want see in your classroom to the nearest tenth cm^3 what is the volume of a sphere with a length of 2.40 cm a width of 2.40 cm and a height of 2.40cm which three statements regarding english colonial society reflect acceptance of religious freedom and diversity in american culture? How do human actions negatively impact ocean ecosystems?A. Burning of fossil feels increases the acidity of the oceansB. Increased tourism in the sailors disrupt the ocean environment C. The ocean ecosystems are not impacted by human actionD. Reducing carbon dioxide emissions threatens ecosystems and food supplies Someone help I for got how to do this been long If A = 6 i -8 j and B = - 16 i + 5 j , what is the magnitude of the vector C = 2 A - B ? 12n - 8- 2n + 10 - 4How to simplify? Write an equation of the line that passes through the point (-1, 4) with slope 2. A graduated cylinder is filled with 20ml of water. A rock is dropped in to the graduated cyclinder and the volume of water rises to 30mlinside the graduated cylinder. The mass of the rock is 23g. What is the density of the rock?2.3g/ml0.77g/ml5g/ml1.15g/ml Which of the following appears to be a scaled copy of the original image? *YOU CAN CHOOSE MORE THAT ONE please solve this question If you answer questions I will make you branilist.