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Makovka662 [10]
2 years ago
10

In a systematic review with a meta-analysis, researchers combine the results of each of the individual studies to create a large

r sample size (and therefore greater power), then re-run the statistics to capture the true magnitude of the effect. The single-effect measure calculated and reported when the results from all the studies are combined is called what?
Mathematics
1 answer:
dalvyx [7]2 years ago
4 0

Answer:

Power analysis

Step-by-step explanation:

Power analysis is a significant part of test structure. It permits us to decide the example size required to recognize an impact of a given size with a given level of certainty. On the other hand, it permits us to decide the likelihood of recognizing an impact of a given size with a given degree of certainty, under example size requirements. On the off chance that the likelihood is unsuitably low, we would be shrewd to adjust or forsake the analysis.

The principle reason underlying power analysis is to assist the analyst with determining the littlest example size that is appropriate to recognize the impact of a given test at the ideal degree of hugeness.

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Which function in vertex form is equivalent to f(x) = x2 + 6x + 3?
Svetlanka [38]
<span>f(x)=x^2+6x+3
     =(1/2.6)^2=3^2=9
f(x)=(x2^+6x+9)+3-9
     =(x+3)^2-6</span>
8 0
2 years ago
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Cos2a.cos3a-cos2a.cos7a/sin4a.sin3a-sin2a.sin5a ​
Dmitrij [34]

Answer is -28.37

Step-by-step explanation:

from the numerator cos 2a×cos 3a - cos 2a×cos7a= cos6a^2 -cos 14a^2

= -cos8a^2 for the numerator

from the denominator;

sin4a×sin3a-sin2a×sin5a= sin12a^2 -sin10a^2

= sin2a^2

therefore, combining the equation it gives; -cos8a^2/sin2a^2

a^2 will divide each other,

= -cos8/sin2.

from the calculator,

= - 0.9903/0.0349

= -28.37

5 0
2 years ago
Based on what you learned about the economics of organic produce explain why buying organic food is so expensive and how that re
arlik [135]

Answer:

because this organic process need more time to produce food.

Step-by-step explanation:

since in the organic farming or agriculture, there is not use of hormones or pesticides, the plants and animals grow slowly, if they have more nutrients than the normal food, they spend more time, that is the reason why they are expensive, not just because the hour-human - work is bigger, also because the time to return the incomes are longer.

Hope this info is useful.

4 0
2 years ago
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The quadratic model f(x)=-5x^2 +200 represents the approximate height, in meters, of a ball x seconds after being dropped. The b
mel-nik [20]

Answer:

Third option: 5.48

Step-by-step explanation:

Given the quadratic  model that represents the approximate height in meters of the ball f(x)=-5x^2 +200. the time in seconds x, when the ball is 50 meters from the ground can be calculated by substituting f(x)=50 and solving for x.

Then:

50=-5x^2 +200

Subtract 200 from both sides:

-200+50=-5x^2 +200-200\\-150=-5x^2

Divide both sides by -5:

\frac{-150}{-5}=\frac{-5x^2}{-5}\\30=x^2

Apply square root to both sides:

\sqrt{30}=\sqrt{x^2}\\\sqrt{30}=x\\5.48=x

The ball is 50 meters from the ground after about 5.48 seconds.

3 0
2 years ago
In the diagram below DE is parallel to XY what is the value of Y ?
Lesechka [4]
B. 94 because it is the same as the other one
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