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melamori03 [73]
3 years ago
7

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?
English
1 answer:
adell [148]3 years ago
7 0

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 '<u>experimental research</u>' 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.

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Match the bolded word in each excerpt to its contextual meaning.
ella [17]

In the excerpt "Missing me one place search another" from "Song of Myself" by Walt Whitman, the word 'boundaries' fits better in the context, in the place of 'one place', since its meaning is close to it, as in 'edge', 'frontier', 'border'. Resulting in the sentence: Missing me bondaries search another.

In the excerpt "Nature without check with original energy." from "Song of Myself" by Walt Whitman, the word 'control' fits better in the context, in the place of 'check', since its meaning is close to it, as in 'manage', 'verify', 'command'. Resulting in the sentence: Nature without control with original energy.

In the excerpt "Between the heaves of storm." from "Dying" by Emily Dickinson, the words 'the rising and falling of an object' fit better in the context, in the place of 'heaves' since they are close in meaning as the up and down of something, in this case, the storm. Resulting in the sentence: Between the rising and falling of the storm.

5 0
4 years ago
Why does nick decide to leave gatsby's mansion?
NemiM [27]
Because it is getting late
6 0
4 years ago
Which statement best explains how Lowell uses the aquarium and the statue of Colonel Shaw as symbols?
docker41 [41]

Answer:

The answer is Both the aquarium and the monument are architectural structures that have been destroyed or almost destroyed, and are symbols for a decent past.

Explanation:

"For the union dead" is a book written by Robert Lowell and was published by Farrar, Straus, and Giroux in 1964 and it was Lowell 6th book.  Colonel Shaw was an American officer who fought during the American civil war for the Union Army. He was an abolitionist and commended the first all-black regiment.  

Lowell wrote the poem For the Union dead with his early days reminisces of an Old Boston Aquarium built near Colonel Shaw figurine to enhance its beauty.  In his book, he talked about how men fought for equality and American dreams during the ancient days but their sacrifices have faded away since capitalism had taken over American society.

5 0
3 years ago
Examine the movie poster.
RideAnS [48]

Answer:

Answer is: images of a tombstone and a skull

Explanation:

The idea of movie poster is to make a movie appealing to viewers, as well as to represent what happens in a movie. Names of staring movie actors and the author can be appealing to some people, but they do not represent what happens in a movie. <em>The use of colours </em>can also be significant for the general idea of a movie, but <em>images</em> are the most important part of a movie representation.

7 0
3 years ago
Donald spends a total of $17.43 on peanuts that cost $2.49 per pound. How many pounds of peanuts does he buy?
natima [27]
7 pounds of peanuts
Explanation: 17.43/2.49= 7 pounds
3 0
2 years ago
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