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fomenos
3 years ago
5

A researcher is using a repeated-measures study to evaluate the difference between two treatments. If the difference between the

treatments is consistent from one participant to another, then the data should produce ______.
A. a small variance for the difference scores and a small standard error
B. a small variance for the difference scores and a large standard error
C. a large variance for the difference scores and a small standard error
D. a large variance for the difference scores and a large standard error
Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

Answer:

A) a small variance for the difference scores and a small standard error

Step-by-step explanation:

Since the difference scores are obtained by subtracting one variable form another, if the difference scores are consistent between treatments, then the variance will be small. The higher the variance, the higher the standard error. So if the variance is small, then the standard error will also be small.

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Can x = 0 in the equation below? Explain. 4 + x + 2 > 8
solong [7]

Answer:

No, x can't equal zero.

Step-by-step explanation:

substitute x for zero. now the equation says 4+0+2>8

4+2 is 6 so 6 < 8. 6 is less than 8 not greater, therefore x can't be zero

7 0
4 years ago
Read 2 more answers
Put the following equation into slope intercept form: 5x – 3y = -9.
AleksandrR [38]
The answer is B) y=5/3x +3
because
5x - 3y = - 9 \\ 5x + 9 = 3y \\ y = \frac{5}{3} x + \frac{9}{3} \\ y = \frac{5}{3} x + 3


please mark as brainliest answer.
7 0
4 years ago
Graph a line that contains the point (-5,-3) and has a slope of -2
Tpy6a [65]

Answer:

-->

Step-by-step explanation:

Graph (-5,-3) and use the slope, -2, to find another point. -2 can also be written as -\frac{2}{1}

\frac{rise}{run} =\frac{-2}{1} and  \frac{rise}{run} =\frac{2}{-1} **

Use both. This works because either way, they will lie on the same line with the same slope. So, starting at (-5,-3), go down two points (-)* and to the left 1 (+)*, then, starting at (-5,-3) again, go up two points (+)* then to the right 1 point (-)*.

* If the number is negative, you either go down or to the right. If the number is positive, you go up and to the left.

**Rise over run refers to the change in the y-axis and the change in the x-axis: \frac{rise}{run} =\frac{y-axis}{x-axis}. Only one number is negative because, if both were negative, that would make a positive number, but the slope is -2, not 2.

Another way you could do this is by finding points first. All you need to do is turn the slope into a "point". Remember, 2 is the y and 1 is the x:

-2=-\frac{2}{1} = (1,-2) and (-1,2)

Then, using (-5,-3) and your new points, add them separately:

(-5,-3)+(1,-2)\\(-5+1,-3+(-2))\\(-5+1,-3-2)\\(-4,-5)

(-4,-5) is one point

(-5,-3)+(-1,2)\\(-5+(-1),-3+2)\\(-5-1,-3+2)\\(-6,-1)

(-6,-1) is another point. Connect the three points. You can check your work on the graph:

3 0
3 years ago
5. Find the vertex and length of the latus rectum for the parabola.
olga55 [171]

Answer: (2,5)

Step-by-step explanation:

To find the x coordinate of the vertex, you will set  x-2=0 and solve for x

x-2=0

 +2  +2

x = 2  

Now since we know the vertex has an x coordinate of 2 we have to solve for y by plotting in the x value.

y= 1/2(2-2)^2 + 5

y = 0 +5

y =5

(2,5)

5 0
3 years ago
The driveway in front of the brown house is 35 feet long and the driveway in front of the red house is 7 yards and 9 feet long.W
AlladinOne [14]

Answer:

The driveway of the brown house is longer by 5 feet.

Step-by-step explanation:

Given two houses (red and brown) such that:

  • The driveway in front of the brown house is 35 feet long.
  • The driveway in front of the red house is 7 yards and 9 feet long.

We want to determine which of the houses has a longer driver.

To compare, we must ensure that all units are the same.

  • 1 Yard =3 Feet

Therefore: 7 Yards =3 X 7 feet =21 feet

Driveway of the red house =7 yards and 9 feet long=21+9=30 feet

Therefore:

  • The driveway in front of the brown house is 35 feet long.
  • The driveway in front of the red house is 30 feet long.

The driveway of the brown house is longer by 5 feet.

5 0
3 years ago
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