Scientists interested in the effect of exercise on the duration of sleep conducted the following study: 180 overweight men were randomly assigned to two groups. One group was instructed to perform aerobic exercise for about an hour per day, and the other group was instructed to continue with their exercise-less routine.
The sleep duration of each subject was measured at two points: before the randomization and 101010 weeks after it. Then, the scientists calculated the change in sleep duration for each subject, where a positive value means the duration increased, and a negative value means is decreased.

What type of statistical study did scientists use?

Answers

Answer 1

Answer:

B). Experimental.

Explanation:

'Experimental study' is characterized as the study pattern in which the researchers deliberately involve intervention or manipulation in the treatment group to observe its effect.

As per the given details, the scientists have employed an 'experimental research' pattern because the research group was divided into two groups 'control group' and 'experimental group' where the experimental group receives an intervention('instructed to continue with their exercise-less routine'). Then the results of the two groups were observed, examined, and analyzed. Hence, it exemplifies the 'experimental research' type.


Related Questions

3. Which quote from the first text supports the author’s claim that it is difficult to understand the beginnings of Lake Mattamuskeet?

A. “The Mattamuskeet National Wildlife Refuge includes about 50,000 acres of land and water in this Carolina coastal country.”

B. “Try to learn the origins of this vast inland lake and at once you stumble upon a collection of local legends in which it is hard to separate fact from fiction.”

C. “Of all the stories of the genesis of Mattamuskeet, local opinion divides its support between two.”

D. “The modern history of Mattamuskeet, although less stirring to the imagination, has been a troubled one.”

Answers

Answer:

B

Explanation:

Answer:

B.

Explanation:

"Try to learn the origins of this vast inland lake and at once you stumble upon a collection of local legends in which it is hard to seperate fact from fiction."

1. Do you think stereotyping is harmful or not?
2. Have you ever witnessed stereotyping?

At least 1 Paragraph

Answers

1. Yes, stereotyping is very harmful and has been proven to be harmful in the past. Stereotypes are usually racist or sexist/misogynistic

2. yes, many times

What the main idea of this paragraph and 2 details to support

Answers

The main idea is the monarch butterflies

Which sentence uses a comma correctly?
Select one:

After the Kesha concert which had all kinds of confetti and glitter bombs I couldn’t get the glitter out of my hair, for a week!

After the Kesha concert, which had all kinds of confetti and glitter bombs, I couldn’t get the glitter out of my hair for a week!

After the Kesha concert which had all kinds of confetti and glitter bombs I couldn’t get the glitter, out of my hair, for a week!

After, the Kesha concert, which had all kinds of confetti and glitter bombs, I couldn’t get the glitter out of my hair for a week!

Answers

Answer: B is your answer! hope i helped :)

Explanation:

Answer:: B I hope I help

Which of the following sentences is punctuated correctly?
A.
Cold temperatures and wet conditions made the cleanup very difficult.
B.
Cold temperatures, and wet, conditions made the cleanup very, difficult
C.
Cold temperatures, and wet conditions made the cleanup very, difficult.
D.
Cold temperatures and wet conditions, made the cleanup very, difficult

Answers

Answer:

a

Explanation:

there should be no commas.

Instructions: Read and answer the following questions about part three of
the novel Wonder. Choose one topic from part three to discuss with your
classmates.
Use the Novel to help you answer the following questions.
1.What's "the plague”?

Answers

Answer:

In "Wonder" (2012), by R. J. Palacio, "The Plague" is a cruel game played by August’s classmates since the beginning of the school year. The game is clearly a way of bullying, as the rules state that whoever touches August must get their hands clean before 30 seconds to avoid being infected with the Plague.

Explanation:

The game shows the social structure of the Beecher Prep as being horrible and taken by this kind of game, which are not only constant but a fundamental element on how the relationships develop in the school.

Which of the following relationships is most similar to the relationship below?

game : play

A. trip : vacation
B. use : energy
C. kind : person
D. bike : ride

Answers

te correct answer is trip : vacation

NO LINKS OR I WILL REPORT YOU

the benefits that come from people working together.
can you please make it five paragraphs

Answers

Answer:

Some benefits of working together are that it might give you some more information on what your learning about. You could help the person that your working together with. They will learn from eachothers mistakes and help eachother fix them.

Explanation:

I can do 1 paragraph (paragraphs count as 3 or more sentances)

How are cultural stereotypes of Native Americans in cartoons and movies harmful?

Answers

Answer:

Today there are numerous stereotypes regarding Native Americans that are maintained from the past, and that have been consolidated through the mass media, especially film and television. Thus, for example, natives are shown as uneducated people, who practically do not know the language and even have slow reasoning. In addition, their scant clothing and almost ridiculous ornaments seem more like a costume than a traditional dress. Lastly, these people are often portrayed as less prone to work, lazy, and quarrelsome.

All these stereotypes have damaged the image of the natives in America, and have contributed to the discrimination that they suffer daily at the hands of the majority western society of the country.

I NEED ASAP! IF ANY TROLLS OR LINKS ARE COMMENTED I WILL REPORT THEM. GIVING BRAINLIEST TO THE FIRST WHO ANSWERS CORRECTLY PLEASE HURRY!


How should this analogy problem be read? heart.body::engine:car

1.heart is to body as engine is to car

2.heart and engine are parts, body and car are the whole

3.heart is a part of a body, engine is a part of a car

4 heart and body, engine and car​

Answers

Answer:

1. heart is to body as engine is to car.

Explanation:

This is the typical way for an analogy to be read. Something is to something as another thing is to another thing.

For example:

rifle is to guns as sabre is to swords.

Essentially, a specific is to general, and is used for both. Rifle is a specific type of gun, and gun is the generalization. Sabre is a specific type of sword, and sword is the generalization.

~

Im making a movie about a girl waking up from a colma. How should she get the colma?

Answers

Answer:

brainwashed?

Explanation:

Answer:

Fatal accident or she got sick , maybe suffered for something like Polio, the Spanish flu, I would use a very good disease or maybe even a small one with fatal effects something life threatening though!

Explanation:

what do you mean by synonyms​

Answers

Answer:

a synonym is a word or phrase that means exactly or nearly the same as another word or phrase

words that are similar in meaning

like mad and angry

nervous and anxious

lucky and fortunate

Sea water is fresh water.
True or false

Answers

Answer:

10% of it is fresh, so false because it is not 100% fully fresh.

How does the setting cause Captain Carpenter to change from how she acts in the beginning to how she acts at the end?

Answers

She is at first careful and cautious but then she is amazed

Which option is the best example of literary nonfiction?

Answers

Answer: A. a speech that details the speaker's attempts to promote civil rights

Explanation:

Which of these comments would be the MOST helpful in a peer review?

"This is a great description because it includes a lot of details and interesting words."
"This is a great description--it gives enough details that I can imagine the way each object looks and feels."
"This is a great description. But you need to add details."
"You need to add transitional tags to your quotes."​

Answers

Its the last one hope this helped

Answer:

"This is a great description--it gives enough details that I can imagine the way each object looks and feels."

Explanation:

It’s important to be specific when you provide peer feedback—even when saying something you like about the report.

I also took the quiz

first try

please give me brainlest

Why Brood X is emerging and why people are excited about is ?

Answers

Answer:

they're going to emerge synchronously in such massive numbers, they fill the bellies of every predator that wants to eat them," Raupp explains. Even after predators' bellies are full, there are still many, many cicadas left to reproduce.

Which of the following is an opinion

Answers

Answer:

B

Explanation:

Other ones are facts and this one includes the word we.

Can i get brainliest?

(1) Waking up to the sounds of the lawnmower outside the window confused Wilma at first, but then her eyes opened quickly as she
remembered what was happening later that day. (2) She hopped from her bed and quickly dressed in clothes appropriate for yard work. (3)
Toast had been prepared for breakfast, and Wilma grabbed a piece as she ran through the kitchen and into the yard. (4) They would need to
make sure the grass was cut, leaves and branches were picked up, and the flowerbeds were weeded before they decorated for the party. (5) As
her mother was mowing the yard, Wilma joined her father in the flowerbed.
Which sentence is out of order in the paragraph?
OA. 2
OB. 3
O c. 4
OD. 5

Answers

Sentence 4 is out of order in the paragraph.

Which of the following is most likely an extended effect of Creon’s edict toward Polyneices?

It caused fear among the surviving family members.
It established Creon’s authority as ruler of Thebes.
It alienated all of Polyneices supporters.
It brought favor to Creon from all Eteocles’ supporters.

Answers

Answer:

the answer is A, I just did the assignment and got it correct!

Explanation:

Answer:

b

Explanation:

What is similar about the way the Gleasons and Lins eat while they're at one another's houses?​

Answers

The answer is they aren't familiar with each others customs, We all want to fit in despite our differences. Hope this helps! Mark brainliest please!

Read this passage from The Way to Rainy Mountain, in which an arrow maker notices someone standing outside his tipi:
". . .If you are a Kiowa, you will understand what I am saying, and you will speak your name." But there was no answer, and the man went on in the same way, pointing the arrow all around. At last his aim fell upon the place where his enemy stood, and he let go of the string (46).
What does the passage most clearly suggest about Kiowa values?
A. Arrow makers hold a sacred position in society.
B. Non-Kiowas are presumed to be enemies
C. At any given time, one is surrounded by enemies.
D. In the right hands, a bow can be a deadly tool of war.

Answers

Answer:

B. Non-Kiowas are presumed to be enemies.

Explanation:

The Whats:

What was the total population?

In 2011 there were 12,000 members.

What were their languages?

English, Kiowa (obviously lol), Plains Sign Talk.

What are their religions?

Native American Church, Traditional Tribal Religion, Sun Dance, and Christianity.

What are the Regions with significant populations?

United States, and Oklahoma.

But to this day they are federally recognized as the Kiowa Indian Tribe of Oklahoma with the headquarters in Carnegie, Oklahoma and as far as I know, in 2011, there were only 12,000 members.

Learn more about to Non-Kiowas: https://brainly.com/question/22999185

Note to moderators!

Please don't delete this answer because I'm just trying to help others.

The passage from The Way to Rainy Mountain suggests that Kiowa values include the belief that one is surrounded by potential enemies at any given time, as evidenced by the arrow maker's actions. Thus option (C) is correct.

The Kiowa are a Native American tribe with a rich cultural heritage and a set of values that have been passed down through generations. Some of the core values and beliefs of the Kiowa people include: Respect for nature and the environment; Community and family and Courage and bravery.

The Kiowa have a deep respect for their cultural traditions and strive to preserve their heritage for future generations.

Learn more about Kiowa here:

https://brainly.com/question/15758328

#SPJ7

Ammar nervously opened his mailbox and slowly pulled out the day’s mail. A moment later he burst into the house with a shout, excitedly waving a thick envelope from State College in one hand."

What is the most likely subtext of the reading?

Answers

Anmar got accepted into college

What are some good topics for an informative/explanatory article?

Answers

Answer:

Any thing about people typically works like jobs, poverty, food, family and friend connections

Explanation:

hope this helped ‍♀️

Which of the following items will you need in order to complete the PROFILE?
A.
Medicaid information
B.
Educational background
C.
Student and parent W-2 forms
D.
Medical history

Answers

Answer:

C. Student and parent W-2 forms

Explanation:

To complete a CSS Profile application, you need a College Board student account. If you need to complete the CSS Profile as a parent (for example, as a noncustodial parent), you still need to create and use a student account. You just need to create a student account using the parent's information

Which line shows the speaker comes prepared to work?

A. I could scrub them spotless well what do you think

B. I have my own rake. No, it wouldn't be hard

C. I only take cash please don't write a check

D. I couldn't keep it busy as we play Chase ​

Answers

Answer:

B)

Explanation:

Worker brought their own materials and show their determination and responsibility through assurance.

Can someone help me please ​

Answers

Answer:

Yes Off course

Explanation:

Tell us what you need

Help with what???
What’s the question

Mercifully, two orders of steak, eggs, beans, and sourdough biscuits arrived before any more
pauses set in.
In what way is the arrival of food a merciful event?
A. Caleb is in need of food because he has not been making much money.
B. Caleb is less likely to embarrass himself while he is busy eating.
C. The Pony Express delivers meals to those who are going hungry.
D. The breakfast is provided free of charge to Pony Express riders.

Answers

Answer:

A

Explanation:

A thick tangle of ivy covered the iron gate so completely that the gate was barely visible to anyone

Answers

Answer:

A: thick,iron, visible.

they are cooking their favorite meals in the garden now . passive voice ​

Answers

Answer:

Their favorite meals are being cooked by them in the garden now.

Explanation:

First, identify the direct subject of this sentence, which is they. Remember to always change things in the independent clause. Then place the indirect object of the sentence at the beginning, which is favorite meals in this case. Switch things around until they make the same meaning (except wordier), and voila - you are done.

Note: most of the time, passive voice is wordy, unclear, and hard to read, so stick with active voice for other writing.

Hope this helps! :)

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