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

I’ll give points + brainalist for the correct answer (:

Answers

Answer:

B

Explanation:

Really hope this helps!

have a wonderful day!!!

also please mark as brainliest and answer another persons question to pat it forward

Answer:

The volumes in line 5 are instinctive abilities this is C.

Explanation:

The answer is C because the the book stood out but it had an instinctive ability to look glittery but be a flat object.

Create a Character vs. Society example

Answers

A Character vs. Society conflict occurs when a character goes against the laws of their society, a tyrannical government, or an unfair community mindset. Usually the protagonist is an altruistic or idealistic individual who sees injustice and wants to correct it for his or her world.

Suppose you are working as a manager in a bank. The overall duty of a banker is to help clients with their financial questions and needs. As a manager you will also inform them the best way to meet their financial goals through the banking institution, but you are not satisfied with the performance of the staff. You want to bring a change in their time schedule and duties. Write a document proposing that change.

Answers

Answer:

How to request a schedule change at work

Determine exactly what you're requesting. Understand what kind of request is appropriate and realistic for your company. Schedule a meeting with your manager. State your case. Set clear expectations.

Explanation:

1. Determine exactly what you're requesting

Before you can make an effective schedule change request, you must first decide exactly what it is you're asking for.

2. Understand what kind of request is appropriate and realistic for your company

It's important to understand exactly what is realistic for your company in terms of making a change-in-schedule request. Consider speaking with a human resources employee first to get a better idea of this before meeting with your manager.

3. Schedule a meeting with your manager

Once you have determined exactly the type of schedule change you will ask for and the specific details that go along with it, request a meeting with your manager to discuss your proposal.

4. State your case

When you meet with your manager, provide them a detailed overview of your schedule change request including how, where, and when you want to work.  

5. Set clear expectations

In addition to discussing the details of your schedule change request and how it may benefit your manager and team, take time to establish clear expectations with your manager regarding your new schedule.

6. If approved, transition as professionally as possible

If your manager approves your schedule change request, make the transition as professional as possible.  

(Please help asap! Brainliest to best/correct answer)

Read this argument from The New York Times opinion pages. Does the author of this article agree or disagree with Nadia Arumugam? Use evidence from each article to support your answer. Answer in a minimum of five sentences. (20 points)

Mayor Michael Bloomberg has done a lot to help improve the health of New York City residents. Smoking is outlawed in workplaces, restaurants and bars. Trans fat is banned in restaurants. Chain restaurants are required to post calorie counts, allowing customers to make informed choices.

Mr. Bloomberg, however, is overreaching with his new plan to ban the sale of sugary drinks larger than 16 ounces. He argues that prohibiting big drinks at restaurants, movie theaters, stadiums and other food sellers can help combat obesity. But as he admits, customers can get around the ban by purchasing two drinks.

The administration should be focusing its energies on programs that educate and encourage people to make sound choices. For example, obesity rates have declined slightly among students in elementary and middle schools, with the city's initiatives to make lunches healthier with salad bars, lower-calorie drinks and water fountains in cafeterias. Requiring students to get more exercise has also helped.

The city should keep up its tough anti-obesity advertising campaigns—one ad shows that it takes walking from Union Square to Brooklyn to burn off the calories from a 20-ounce soda. The mayor has also started adult exercise programs and expanded the program for more fresh produce vendors around the city.

Promoting healthy lifestyles is important. In the case of sugary drinks, a regular reminder that a 64-ounce cola has 780 calories should help. But too much nannying with a ban might well cause people to tune out.

Citation: "A Ban Too Far." New York Times 1 June 2012, New York A26. Web. 3 Apr. 2013.

Answers

Answer:

The author disagrees and by observing key words choices such as "however tell you that" It may seem confusing since while disagreeing with the opinion they also seem to agree, but the author is actually counterclaiming those ideas. A counterclaim is a statement used to say an idea the other team might have and explains why that idea is actually not valid. In the end, the author is not saying the idea they are writing about is wrong, but simply warning them why they should be mindful.

The author disagrees with Nadia Arumugam and this is shown by the use of counterclaims to rebuff her claims.

What is a Counterclaim?

This refers to the rebuttal of a claim which is usually made in anticipation of the points of an opponent.

Hence, we can see from the given argument in the newspaper, there is the claim made by Nadia Arumugam and the narrator is of a different opinion as he asks that people exercise caution.

Read more about counterclaims here:

https://brainly.com/question/15987404

Helppppp plsssssssssssssssssssssss thanks so much

Answers

The answer is unfortunately bc it the only one that makes sense

A lot of land ____ sold to early settlers.
Is it was/were
please provide reason as well​

Answers

Answer:

was

Explanation:

true or flase
Because some individuals lose their jobs from international trade, the country would benefit from implementing a policy that restricts trade?

Answers

True! Mark brainliest?
true, hope this helps!

Which two changes should be made to the sentence on the left?



Capitalize october.
Capitalize northern.
Capitalize state.
Make Autumn lowercase.

Answers

Answer:

Explanation: i need help that answer

Coach Johnson knows that this system of equations represents the number of tickets sold before the tournament, x, and at the door, y.
x + y = 743
x – y = 75
An assistant told him that 409 tickets were sold at the door and 334 tickets were sold before the tournament. Is this solution correct? Explain.

Answers

Answer:

This solution is incorrect.

Explanation:

We will use the substitution method to solve this equation.

The first step is to isolate one of the unknowns to find the solution, in which case we will isolate the x.

Then:

x - y = 75

x = 75 + y

In the second step, we will replace the x found in the second equation to solve the first equation.

x + y = 743

(75 + y) + y = 743

75 + 2y = 743

2y = 743 - 75

2y = 668

y = 668/2

y = 334

In the third step, we substitute the value of y in any of the questions to find the final result:

x - y = 75

x - 334 = 75

x = 75 + 334

x = 409

Therefore, if x represents the number of tickets sold before the tournament, and y represents the number of tickets sold at the door, and as the values of x = 409 and y = 334, we can conclude that the assistant made a mistake and inverted the values.

Answer:

Sample Response: No, the assistant’s solution is incorrect. The solution (334, 409) satisfies the first equation, but not the second. The assistant mixed up the numbers. The solution should be (409, 334)

Explanation:hope this helps


What is an unreliable narrator? What makes him/her unreliable?

Answers

Answer:

In literature, an unreliable narrator is a character who tells a story with a lack of credibility. There are different types of unreliable narrators (more on that later), and the presence of one can be revealed to readers in varying ways — sometimes immediately, sometimes gradually, and sometimes later in the story when a plot twist leaves us wondering if we’ve maybe been a little too trusting.

(I hope this information helps)

Answer:

Explanation:

An unreliable narrator is a narrator that isn’t a reliable source for your argument. Something that makes them unreliable is if your argument is about moving forward with something but the narrator is only talking about the opposite argument.

hope that helped.

What happens to Fortunato in the end?
a. let’s fortunately go visit his wife
b.leaves him down in the basement where he maybe dies
c. sets him on fire and kills him
d. leaves him in the basement but he escapes

Answers

D possibly I’m not completely sure

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

9. "Men are all like stomachs, and we women are all like food. They devour us when they're hungry, and when they're full, they belch us out."

(a) Simile (b) Hyperbole (c) Personification (d) Point-of-view​

Answers

Alright! So, it's not (d) point of view or (c) personification so it leaves us off to (a) simile and (b) hyperbole. Although it CAN seem like hyperbole, it leans more to (a) simile.

Therefore, (a) simile is the correct answer.

The word involuntary means "not by choice.” What is one clue you can use to help you figure out the meaning? think about Jaylen being interviewed notice the words "noises" and "movements" look at the prefix in-, which means “not”

Answers

Answer:

C.look at the prefix in-, which means “not”

Explanation:

I got it right

Answer:

its c

Explanation:

Read the excerpt from President Woodrow Wilson’s speech, “War Message to Congress.” I have called the Congress into extraordinary session because there are serious, very serious, choices of policy to be made, and made immediately, which it was neither right nor constitutionally permissible that I should assume the responsibility of making. Which best explains why President Wilson chooses the word “extraordinary”? He is trying to call attention to the issue. He thinks the nation will go to war. He likes using diverse vocabulary. He is apologizing for calling this session.

Answers

He is trying to call attention to the issue

The answer choice which best explains why President Wilson chooses the word “extraordinary” is because:

A. He is trying to call attention to the issue

According to the given question, we are asked to show the answer choice which best explains why President Wilson chooses the word “extraordinary”

As a result of this, we can see that from the given speech which President Woodrow Wilson made to the Congress about the call to arms and the use of the word extraordinary was to call attention to the issue at hand so that Congress could act swiftly.

Therefore, the correct answer is option A

Read more about “War Message to Congress.” here:

https://brainly.com/question/2597020

Select the group of words that is punctuated correctly.
A.
Here are the directions to the​ stadium; Turn left on Main Street. ​Next, follow Main Street to High Street. Turn right on High​ Street, and the stadium is on the left.
B.
Here are the directions to the stadium Turn left on Main​ Street; next, follow Main Street to High​ Street; turn right on High​ Street, and the stadium is on the left.
C.
Here are the directions to the​ stadium: Turn left on Main​ Street; next, follow Main Street to High​ Street; turn right on High​ Street, and the stadium is on the left.
D.
Here are the directions to the​ stadium, turn left on Main Street. ​Next, follow Main Street to High Street. Turn right on High​ Street, and the stadium is on the left.

Answers

Answer:

A: Here are the directions to the stadium; Turn left on Main Street. Next, follow Main Street to High Street. Turn right on High Street, and the stadium is on the left.

Click to capitalize the movie's title correctly.

what love is for


Please hurry

Answers

Answer:

What Love is For thats the answer

What are the six steps in preforming research?

Answers

identifying the area of study, choosing the topic, formulating a research plan, collecting and then analysing the data and then finally writing up the study.

20 POINTS Which music genre was not listed in the textbook as one of the most popular genres in Georgia? (For this question, since I can't link the textbook, be free to skip it or answer it from your own knowledge.)
Blues
Opera
Rap
Bluegrass

Answers

Answer:

Bluegrass

Explanation: I got the right answer

*I need help answering this question

distinction between male and female (he & she) ?

Answers

Answer:

male and female genitalia, both are internal and external are different. the levels and types of hormones present in male and female bodies are different

write a Thank you letter for the stars or the moon in a paper please. because links don't open for me​

Answers

the links are hacks, don't try and open them. they track your phone
Dear moon and stars,

Thank you for helping to light our path through the darkness of the night. You give us hope and lead us to a new tomorrow. You brave the darkness and are there for us until the bitter end. Your lights that shine down on us help us in finding new beginnings and better ends. I hope that one day I may join you all up in the sky when I am gone from this world to thank you for all you’ve done for us.

- from your secret admirer
—————————————————————
Hope this is good enough for ya good luck

PART B : which detail from the text best supports the answer to part A

Answers

Answer:

c

Explanation:

because

Which of the following emotions most likely represents Ismene’s refusal to help Antigone?

anger
fear
distrust
suspicion

Answers

Answer: Hewo, there your answer is below

Fear would be my answer

Explanation:

ismene refuses to help Antigone, because she does not want to break the law by going against Creon or other because she realizes the consequences would be extreme since she is a woman. ... Ismene has resigned herself that this is the way it will always be, so she has stopped trying to rise above and be independent.

Hope this helps!!!

have a great day!!!

Answer:

Because she is AFRAID of the death penalty and creon

Explanation:

Hope this helped and have a wonderful day! <33 :))

What is the meaning of attribute as used in paragraph 9

Answers

Answer:

Name as a cause of

Explanation:

To answer this question you will need to try the prompts you are given out in the passage.

1. Some scientists name the starfish as a cause of invasion to pesticides

does that work? Yes it seems to fit in but we need to check the other options

2. Some scientists refuse to belive in the starfishes' invasion to pesticides

no that does not seem right because the starfish has thorns and certain characteristics that make it right to believe that they are the problem

3. some scientists draw attention to the starfishes' invasion to pesticides

yes it does seem right but we are already spotlighting the focus on starfish so it would be incorrect to reverberate the same statement

4. some scientists notice a change in the starfishes' invasion in pesticides  

since we are looking at past tensed information scientists wouldnt be able to concuct something new about the starfish since the starfishes invasion was a cause of pesticides and fertilizers to reach water to generate more starfish

so we go with number 1 because it sounds and is proven reasonable

name as a cause of

Please help! Giving brainliest
The energy transformation in an electromagnetic is from chemical to electrical to electromagnetic waves.
True or False?
The energy transformation in an electromagnetic is mechanical energy to electrical energy chemical energy.
True or False?

Answers

Answer:

true!

Explanation:

what goes up and down but doesn't move​

Answers

Answer:

Well, the answer for this can be, Stairs - It goes up, it comes down, yet it remains in the same place

Explanation:

Question 25
Prince Escalus, a beacon of truth, blames the families' feud for the death of Romeo and Juliet.
Oxymoron
Simile
Personification
Metaphor

Answers

Answer:

Metaphor

Explanation:

Metaphors compare two different objects without using like or an.

In this case, it’s comparing Prince Escalus to a beacon of truth.

What is the value of b-a if a = 18, b= 27, and c= 11? O 16 09 07 11​

Answers

Answer:

9

Explanation:

a = 18

b = 27

b - a

=> 27 - 18

=> 9

Which situation is an example of internal conflict?

Answers

There are many different types of conflict including internal conflict, external conflict, etc.  

Internal conflict refers to a character's inner struggles.  

For example, a character may be having internal conflict based on difficult choices they must make or self doubt regarding their personality/appearance.

I hope this helps!!

Please mark me as brainliest :-)

Internal conflict is a type of conflict that happens within the same community, tribe, state or country. For example; civil war. Internal conflict may result from political, religion or economic causes. Hope this helps! Mark brainly please!

part of an argument essay restates the claim? must Explain to get brainliest​

Answers

Answer:

c

Explanation:

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