In an experiment, the variable that is manipulated is called the?

HELP! PLZ I need to show work too . <br><br><br> -12.5 - (-12)

Mila [183]

Answer:

-0.5

Step-by-step explanation:

-12.5 - (-12) = -12.5 + 12 (because you distribute the minus sign). Then, when adding you get - 0.5

4 0

3 years ago

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Explain what a P-value is. What is the criterion for rejecting the null hypothesis using the P-value approach?

ladessa [460]

Answer:

P-value or Probability value is the exact percentage where test statistics lie.The criterion for rejecting the null hypothesis using the P-value approach is that if P-value < Level of significance , then we reject our null hypothesis

Step-by-step explanation:

P-value or Probability value is the exact percentage where test statistics lie.

It also tells the probability of obtaining extreme results corresponding to our level of significance keeping in state that our null hypothesis is true or correct.

The criterion for rejecting the null hypothesis using the P-value approach is that if P-value < Level of significance , then we reject our null hypothesis i.e.

Suppose P-value is 2.33% and Level of significance is 5%, then we will reject our null hypothesis as 2.33% < 5%.

On the other hand, if P-value > Level of significance , then we cannot reject or accept our null hypothesis.

5 0

3 years ago

HIII PLEASE HELP LOL IM TRYING HARD

Kisachek [45]

Answer:

(4,6)

is the missing pair.

Step-by-step explanation:

4 0

3 years ago

Write the slope-intercept form of the equation of each line.

gregori [183]

Greetings!

Answer:

2y = x - 6

Step-by-step explanation:

First, we must find the slope of the current equation.

This is the number in front of the x.

Seeing as this is -2x, the slope of this line is -2

When finding the slope of a line perpendicular, you need to find the $\frac{-1}{slope}$

So, in this case it is:

$\frac{-1}{-2}$

The negatives cancel out which leave $\frac{1}{2}$

So the gradient is $\frac{1}{2}$

Now, to find the equation of a line, you need to use:

y - y1 = m(x - x1)

Where ya and x1 are the values in the coordinates (2 , -2)

So y1 = -2, x1 = 2, and m is a half. Plug these values in:

y - - 2 = $\frac{1}{2}(x - 2)$

We need to get rid of the half so we multiply the whole equation by 2:

2y - - 4 = (x - 2)

The minus and the negative turn into a positive:

2y + 4 = x - 2

And now simply move the +4 over to the other side, making it a negative:

2y = -2 - 4 + x

Simplify:

2y = x - 6

<h3>So the equation of the line is 2y = x - 6</h3>
<h2>Hope this helps!</h2>

5 0

3 years ago

help plssss also option d is: the graph crosses the y-axis at (0,7), increasing from x= -10 to x=0 and decreasing from x=0 to x=

labwork [276]

C.
The starting point is (-10,-2). It crosses the y-axis at (-8, 0). It is increasing from -10<=x<=-2. It deceases from -2<=x<=10.

4 0

3 years ago