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

Will Mark Brainliest, PLS HELP!
Use the image below to answer the question.



The illustration shows the mitochondrial intermembrane space. Molecules enter and exit enzymes. Molecule upper N upper A upper D upper H passes through enzyme upper N upper A upper D upper H Reductase releasing upper H superscript + baseline and upper N upper A upper D superscript + baseline. A blue arrow starts at upper N upper A upper D superscript + and goes through enzyme Ubiquinone then enzyme Cytochrome Reductase, an upper H superscript + baseline is released. The arrow continues through enzyme Cytochrome c and enzyme Cytochrome Oxydase, another upper H superscript + baseline is released. The formula 2 upper H + one-half upper O subscript 2 baseline is to the left of enzyme Cytochrome oxydase with an arrow pointing to the other side. The arrow meets with the arrow from upper N upper A upper D superscript + baseline at upper H subscript 2 baseline upper O. To the right is upper A upper T upper P synthase, upper A upper D upper P + upper P subscript 1 baseline have an arrow going under upper A upper T upper P synthase, an upper H superscript + baseline arrow points to the arrow, the result is upper A upper T upper P.
Which step of cellular respiration is shown in the image?




glycolysis


lactic acid fermentation


electron transport chain

Krebs cycle

Answers

Answer:

electron transport chain

Explanation:

just took the quiz

The image shows the C. electron transport chain (ETC) step of cellular respiration

What is the electron transport chain ?

The ETC is the final stage of cellular respiration, where oxygen is used to create ATP. NADH and FADH2, which are produced in the Krebs cycle, donate electrons to the ETC.

The electrons are passed through a series of proteins, which release energy that is used to pump protons across the mitochondrial membrane. This creates a proton gradient, which is used to power ATP synthase to produce ATP

The Krebs cycle and lactic acid fermentation are both earlier steps in cellular respiration. In the Krebs cycle, pyruvate is oxidized to produce NADH, FADH2, and ATP. In lactic acid fermentation, pyruvate is converted to lactate, producing NADH.

Find out more on the electron transport chain at https://brainly.com/question/29911753

#SPJ3

After the comma is instead into the sentence the sentence now seems to be asking whether or not the bird ate

Answers

Answer:

yes

Explanation:

probably did something else first

Pepsin and Trypsin are enzymes. At what pH do they have the highest rate of reaction?

Answers

Answer:

It has an optimum pH of about 1.5. Trypsin's optimum pH is about 8.

Explanation:

This active trypsin acts with the other two principal digestive proteinases — pepsin and chymotrypsin — to break down dietary protein into peptides and amino acids. These amino acids are essential for muscle growth, hormone production and other important bodily functions.

mark me as brainiest

thanks  & do subscribe

What is the process of nitrification?

Bacteria converts ammonia into nitrites and nitrates that plants can use.
Fungi convert nitrogen in dead plants into ammonium, which converts proteins into ammonia.
Nitrogen is converted into a useable form through lightning fixation.
Plant enzymes reduce nitrogen compounds into amino acids.

Answers

Answer:

Bacteria converts ammonia into nitrites and nitrates that plants can use.

Nitrification is a microbial process by which reduced nitrogen compounds (primarily ammonia) are sequentially oxidized to nitrite and nitrate. Ammonia is present in drinking water through either naturally-occurring processes or through ammonia addition during secondary disinfection to form chloramines.

                                        Thank You

what is photosynthesis ?? ​

Answers

Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Answer:

The process of making food by plants through the help of sunlight is called photosynthesis

why old system of measurement isn't accepted nowadays ​

Answers

We can measure the length of an object using the units of measurement 'hand span,' 'forearm length,' or 'footstep.' Hand span, forearm length, and footstep, on the other hand, cannot be used as standard unit measurements because their length varies from person to person.

To conclude, the old system of measurement isn’t accepted anymore because it would not be accurate.

Dalton’s theory was identified using

light microscope images of atoms.
the experimental results of other scientists.
water vapor and air experiments.

Answers

Answer:

Explanation:

Actually it was the experimental results of other scientists. The main stems of the theory was the indivisibility of small spheres (his image) that represented the elements he knew which reacted with other elements.

They seemed to give the same ratios in reactions (definite proportions) and multiple whole number ratios. Look up Lavoisier.

In order to test the effects of a new drug, you isolate the messenger RNA molecules from both treated and untreated eukaryotic cells and separate them according to size using gel electrophoresis. In each lane of the gel, the shorter RNA molecules migrate more quickly through the gel and end up near the bottom of the gel while the longer RNAs migrate more slowly and remain near the top.


The samples that were loaded into each of the four lanes are as follows:

Lane 1: the primary RNA transcripts isolated from the nucleus of untreated cells
Lane 2: the primary RNA transcripts isolated from the nucleus of cells treated with the drug being tested
Lane 3: RNA isolated from the cytosol of untreated cells
Lane 4: RNA isolated from the cytosol of cells treated with the drug being tested

Which of the following conclusions is most likely to be CORRECT?

A. These results suggest that the drug affects RNA processing.
B. These results suggest that the drug digests DNA.
C. These results suggest that the drug inhibits DNA replication.
D. These results suggest that the drug contains a protease that targets this gene product.
E. These results suggest that the drug inhibits post-translational processing of this gene.

Answers

the answer is e for the question

Did the total number of new products with health claims increase or decrease between 1990 and 2000?

Answers

the total number increased .

3. The average pencil can be sharpened 17 times and write about 45,000 words. Which can
write longer, wooden #2 pencils or mechanical pencils (with one piece of lead)?

Please help :(

Answers

The answer to you problem is Wooden pencils can last longer than mechanical pencils

HELP ME 40 POINTS!!!
1.A single statement that describes the purpose or reason for conducting an 1 point
experiment without making a prediction.
2. The word simply states that the results obtained were due to chance and not the independent variable that the researcher changed or the situation that they engineered
3. This is a statement predicting the direction of a relationship between variables
4 it predicts the findings of study

Answers

To determine what sort of data table will be most useful or The purpose of an experiment is to test a hypothesis at least that's what i know.  I do think "3. This is a statement predicting the direction of a relationship between variables" Is the right ansswer. Sorry if i'm wrong. :c

why velocity is regarded as a vector quantity?​

Answers

Answer:

Because velocity has magnitude and direction, speed is not a vector quantity since it only has magnitude

For example, if a car is moving backwards with a speed of 40m/s

Your velocity is - 40m/s

Speed is 40m/s

What explains why certain dead organisms in the past were not fossilized?

Answers

Answer:

They may not have skeletons, their body/bones were destroyed underground, the earth around them wasn't the correct type of rock, etc.

Explanation:

Only a small percentage of organisms are ever fossilized, and can only be fossilized under specific circumstances.

If, for one day, ice water decided to be denser than liquid water, how will this affect our planet?

Answers

If ice were more dense than water, it would freeze and sink over and over until the entire lake was frozen. ... This same process occurs in the fall as the surface water cools and becomes more dense; it will sink and cause the same movement or turnover of the lake's water.

A _ is a group of connected cells that have a similar
A
function.

Answers

Answer:

A TISSUE is a group of connected cells that have a similar function.

que es el eslabón perdido​

Answers

Answer:

bonjour

please try and express what you asking in English

Pls help me with this question:) (I took a picture of the questions)

Answers

3. Carbon is waste inside the cell and must be removed from cell (im not entirely sure if thats the right one tho :) )

Which describes a difference between solar wind and a geomagnetic storm? Select the three correct answers.​

Answers

Answer:

Hope it may help you.

Explanation:

The intensity of solar wether changes frequently

-Mɪsʜᴀɴ Mᴀɢᴀʀ

How will a solution change if a base is added?

The hydroxide ion concentration will decrease and lower the pH.
The hydroxide ion concentration will decrease and raise the pH.
The hydrogen ion concentration will increase and lower the pH.
The hydroxide ion concentration will increase and raise the pH.

Answers

Answer:

As the concentration of hydrogen ions in a solution increase, the more acidic the solution becomes. As the level of hydroxide ions increases the more basic, or alkaline, the solution becomes. ... Thus, as the hydrogen ion concentration increases hydroxide ion concentration falls, and vice versa.

                                             Thank you

A kilometer is a longer distance than a meter

Answers

Answer:

That's true a kilometer is a longer distance than a meter (1,000 times longer)

Explanation:


¿Qué condición se requiere para que se reproduzcan los virus?

Answers

Answer:

it must enter cells of the host organism and use those cells' materials.

Explanation:

A virus must take control of the host cell's replication mechanisms. At this stage a distinction between susceptibility and permissibility of a host cell is made.

PLEASE HELP ASAP ILL GIVE YOU BRAINLEST
explain what density is. How is it different from weight and mass?

Answers

Hey there! I'm happy to help!

Density is how much mass there is per amount of space. The formula for it is mass divided by the volume. How much mass is there per (per means divide) amount of space?

Think of it like a room in a house. If the room only has one person, it isn't going to be very dense with people because there is only one person in the entire room. If there were 100 people, it would be very crowded in that room and the whole room would weigh a lot more. If we make our room the size of a huge convention hall though, 100 people wouldn't make it very crowded,. and it would be less dense. So the amount of people (mass) and the size of the room (volume) affect density.

In that sense, density is kind of like how crowded a thing is.

A hollow watermelon has less density than one that isn't because a watermelon that isn't hollow has more substance inside of it (more mass).

Mass is a factor of density because it measures how much of something there is. It can be related to the people in the room.

Weight is mass but with gravitational influence. A watermelon in space is going to weigh less than a watermelon on Earth because in space there is no gravity and it is floating around, but it will still have the same density just like our room full of people would still be crowded even if the people weighed nothing and were floating around.

On Earth though, we measure mass with terms like pounds, kilograms, etc. We use the term mass over weight because it is more scientifically accurate when calculating density.

Have a wonderful day and keep on learning! :D

Density quantifies how much mass is present in a certain matter or object with respect to volume

Carbohydrates provide many things, including:

Answers

Answer:

Carbohydrates are mainly found in plant foods. They also occur in dairy products in the form of a milk sugar called lactose. Foods high in carbohydrates include bread, pasta, beans, potatoes, rice, and cereals. Carbohydrates play several roles in living organisms, including providing energy

Explanation:

hope its help

thank you

The image shows a vulture soaring over a rocky cliff. The arrows model the different ways energy moves between the sun, atmosphere, and geosphere.

Match each type of energy transfer to the arrows shown in the image. Describe how energy transfer helps the vulture soar above this rocky cliff.

Answers

Given what we know about the way energy moves through the Earth, we can confirm that the vulture uses the hot air currents that result from this movement of energy to soar above the cliff.

The energy from the sun travels through the atmosphere, then into the soil where it is absorbed. The soil then radiates the heat back out into the atmosphere.

Given that hot air rises, this radiated heat causes the formation of hot air currents that the vulture then uses to glide upwards in a circular motion.

The vulture planes over the hot air currents with its wings at an angle to climb, it goes higher the further it wishes to travel given that once at the desired height, it glides downward towards its destination.

To learn more:

https://brainly.com/question/2168401?referrer=searchResults

Which organism receives the least amount of energy from the producer?

Answers

Explanation:

hope it is helpful for you

explain why are auxins added to the agar​

Answers

Answer:

Auxins are added to the agar because Auxins control the growth of plants by promoting cell division and causing elongation in plant cells.

Hope it is helpful....

TRUE OR FALSE: Agricultural Scientists play a vital role in maintaining and expanding our nation's food supply.

Answers

True, Agricultural and food scientists play an important role in maintaining and expanding the nation's food supply. Many work in basic or applied research and development. ... With a focus on food production, they explore animal genetics, nutrition, reproduction, diseases, growth, and development.

RNA differs from DNA in the type of a) purines & pyrimidness b) sugars & Purmes c) sugar & pyrimidness. dl pyrimidness (please give right answer only)​

Answers

Answer:

There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.

So, the answer is

Explanation:

Fill in the blanks please I’ll mark you brainliest!

Answers

Answer:

16. a, research

Explanation:

you should form your hypothesis on research because based on what you researched is what will help you try predict the outcome of the experiment

what is astraphobia...............​

Answers

Answer:

Astraphobia, also known as brontophobia, is a kind of phobia characterized by an intense fear of extremely loud but natural noises in the environment. Namely, lightning and thunder.

Hey there!

Astraphobia:⤵️

Astraphobia, also known as astrapophobia, brontophobia, keraunophobia, or tonitrophobia, is an abnormal fear of thunder and lightning, a type of specific phobia. It is a treatable phobia that both humans and animals can develop.

Hope it helps you

Have a good day
Other Questions
what is the meaning of velocity? Who invented the lightbulb....................... its not Thomas Edison _-_ What is the sum of all the positive integers from 24 to 102 Which of the following equations has the same solution as: |3x + 2| = 4x + 5 State the gradient of the line 2y = 3 2x. Which point represents the opposite of -2?A B C D5 3 2 0 1 2 3 4 5OD HELP PLS! ;PFind n.A. 53B. 5C. 103/3D. 10 whats the solution for -108pi=6pij Does securement mean protecting for someone or something? The main difference between oralism and sign language is theA) communication method B) signed English formC) hearing levelsD) cochlear implant provide 5 bullet points from the film of important concepts 22. Choose the correct sentence:A. Camping scares me because of all thewild animals.B. Not afraid of anything at all but bears.C. My mom, who wanted to take ourfamily camping!D. Glad my dad said, "No way!" Complete the sentences with the Past Simple affirmative form of the verbs below. (6Pts)(Buy go perform wear have find)1. A rap group _____________________________Pitbull songs last night.2. Dan an old violin in his grandmother's house.3. I three CDs for 10 at the music shop.4. We dinner at a restaurant before the concert.5. My grandfather to a Beatles concert in 1968.6. Kate her new jacket at the party Which of the following is the equation of the line that has x-intercept -2 and y-intercept -6?. y=-3x - 6B. y=-2x - 6C. y=-6x-2D. y = 3x - 2 what are the reasons for looting in South Africa other than politics in Class of 80 students in debrebirhan university, 45 are good in mathematics, 15 are good in both mathematics and English, 13 are good in both mathematics and psychology, 16 are good in both English and psychology only, 20 are good in psychology and 9are in both of the three courses can you write an essay about a comic book called El Deafo by Cece Bell. about 100 words? A shift inward of the production possibilities curve signifies that _ A. The demand for the products has increased, so the supply will increase B. The available resources have increased, so potential production levels will increaseC. The available production resources have decreased, so potential production levels will decrease D. The demand for the products has decreased so, the supply will decrease insha ya ajali kuandika I WILL MARK AS BRAINLIEST! Graph each coordinate pair on the graph and then indicate which quadrant or axis the point lies on.