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likoan [24]
3 years ago
13

When testing a new​ treatment, what is the difference between statistical significance and practical​ significance? Can a treatm

ent have statistical​ significance, but not practical​ significance?
Mathematics
1 answer:
Arada [10]3 years ago
3 0

Answer:

Statistical significance relates to whether an effect exists.

Practical significance refers to the magnitude of the effect.

And you can have statistical significance but not practical.

Step-by-step explanation:

Let's analize it with an example.

Suppose that your new treatment involves hair recovery.

You divide the population of the test in two different groups.

And you apply the treatment to only one of them.

You can see that the treatment works and there is a 3% improvment.

You have statistical significance. The treatment worked.

Now, if the test was expensive, the 3% improvement might not be practical.

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A quadratic equation is shown: x2 + 18x + 76 = 0 Which of the following is the first correct step to write the above equation in
tia_tia [17]

Answer:

  x^2 + 18x + 76 + 5 = 0 + 5

Step-by-step explanation:

The first step is to determine the constant that is needed to be able to write the expression in the desired form. That constant is the square of half the x-term coefficient: (18/2)^2 = 9^2 = 81.

The constant that is present is 76, which is 5 fewer than the needed constant, so the "first step" is to add 5 to both sides of the equation:

  x^2 + 18x + 76 + 5 = 0 + 5

Then the next step would be to write the left side as a square:

  (x +9)^2 = 5 . . . . . . . p = -9; q= 5

4 0
3 years ago
A right triangle is removed from a rectangle to create the shaded region shown below. Find the area of the shaded region. Be sur
Mashcka [7]
The sides of a right triangle are
a=8-5=3
\\ b=6-4=2
\\
\\A=A_{rectangle}-A_{triangle}=8\times 6-  \frac{ab}{2} =48-\frac{3\times2}{2}=48-3=45
7 0
2 years ago
Read 2 more answers
Change the fraction to a percent.
ziro4ka [17]
The fraction in the picture is  1/8 . 
That's equivalent to 12.5 %.
____________________________________

Maybe what you want is the whole mixed number changed to percent.

-- The  5  alone is  500% .

-- The  1/8  alone is  12.5% .

-- When you puttum together and addum up,

                 (5 + 1/8)  =  (500%  +  12.5%)  =  512.5%  .
8 0
3 years ago
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last month Tara work 16.5 hours the first week 19 hours the second week 23 hours the third week 15.75 hours the fourth week she
STatiana [176]
The number of hours, h, Tara plans to work this month are greater than 16.5 + 19 + 23 + 15.75. Therefore, h > 16.5 + 19 + 23 + 15.75.

h > 74.25
7 0
3 years ago
What does 2/3 - 2/4 equal?<br> I need the steps on how to get the answer please!!
alina1380 [7]

\frac{2}{3} - \frac{2}{4}\\\\\frac{2}{3} - \frac{1}{2} = \frac{1}{6}

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

8 0
3 years ago
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