1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
matrenka [14]
3 years ago
11

Before hypothesis testing and at the beginning of a study, a researcher is advised to conduct _____ because it _____.

Mathematics
1 answer:
ZanzabumX [31]3 years ago
4 0

Answer:

d. a power analysis; tells the researcher the number of participants needed for trustworthy results.

Step-by-step explanation:

A control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.

A hypothesis is considered to be tentative or an educated guess and can be defined as a testable explanation for an observation or a scientific problem. An example of a hypothesis is saying, Corona virus is caused by the introduction of the "5G" technology.

This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.

Before hypothesis testing and at the beginning of a study, a researcher is advised to conduct a power analysis because it tells the researcher the number of participants needed for trustworthy results.

A power analysis should always be conducted before the collection of data because it will help you as a researcher to determine the smallest sample size that's accurate enough to detect the effect of a specific test at the desired statistical significance level.

You might be interested in
What is the awnser to the circled equations?​
pshichka [43]

Answer:

y = - \frac{1}{3}x - 1

Step-by-step explanation:

We have to write an equation of a line which  passes through the given point (-9,2) and is perpendicular to the given straight line y = 3x - 12 ........... (1)

Now, equation (1) is in the slope-intercept form and the slope of the line is 3.

Let, m is the slope of the required line.

So, 3m = -1

{Since, the product of the slopes of two perpendicular straight lines is -1}

⇒ m = - \frac{1}{3}

Therefore, the equation of the required line in slope intercept form is  

y = - \frac{1}{3} x + c {Where c is a constant}

Now, this above equation passes through the point (-9,2) point.

So, 2 = -  \frac{1}{3} \times (-9) + c

⇒ 2 = 3 + c

⇒ c = - 1  

Therefore, the equation of the required straight line is y = - \frac{1}{3}x - 1 (Answer)

5 0
4 years ago
PLZ ANSWER THIS ASAP<br> 7(3+5)= _______ + _____
tigry1 [53]

Answer:

56 hope this helped you.

4 0
3 years ago
Read 2 more answers
The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 1000 years?
adell [148]

Answer: 129.33 g

Step-by-step explanation:

$$Let $p=A \cdot e^{n t}$ \\$(p=$ present amount, $A=$ initial amount, $n=$ decay rate, $t=$ time)

\begin{aligned}&\Rightarrow \text { Given } p=\frac{A}{2} \ a t  \ t=1590 \\&\Rightarrow \frac{1}{2}=e^{1590n} \Rightarrow n=\frac{\ln (1 / 2)}{1590}=-0.00043594162\end{aligned}

$$If $A=200 \mathrm{mg}$ and $t=1000$ then,$$\begin{aligned}P &=200 e^{\left(\frac{\ln \left(1/2\right)}{1590}\right) \cdot 1000} \text \\\\&=129.33 \text { grams}\end{aligned}$$

3 0
2 years ago
Find the area 3/4 circle with the radius of 4.<br> THXXXXX
AlexFokin [52]

Step-by-step explanation:

If you were asking what is the 3/4 the area of circle with radius 4 I can answer this.

The area of a circle with radius 4 is π4 ^2=16π

3/4*16π= 12π, thus your answer.

7 0
3 years ago
Please help meeeeeeeeeeeeeeeee
Ganezh [65]
Am not sure but i think it would be A

4 0
3 years ago
Read 2 more answers
Other questions:
  • 2+2+ 123-120 + 3563 =
    7·2 answers
  • Write an expression that uses partial products to multiply 8× 64
    8·2 answers
  • The interior angle of a triangle measues 75, (5w+25), And (2w+10)
    11·2 answers
  • B<br> + b + b + c + C + C + C =
    14·1 answer
  • X2 - 6x + 3<br> Is the solution of this answer a real number?
    10·2 answers
  • Fill in each box below with an integer or a reduced fraction.
    10·1 answer
  • A man walks 6 kilometers towards south and then he traveled 10 kilometers towards west and then 4 kilometers towards north and t
    11·1 answer
  • Help me i need help pls you all are smart
    9·1 answer
  • C) The exponential model A = 513.5e0.009t describes the population, A, of a
    9·1 answer
  • i bought a box of chips worth $12.98, there are 30 bags of chips in the box. How much is 1 bag of chips worth ? please help
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!