One hundred volunteers who suffer from depression are available for a study involving a new drug that is thought to be effective in treating depression. Researchers want to compare the new drug with the drug currently in use. The researchers believe that men and women may respond differently to the drugs. Fifty of the volunteers are selected at random and are given the new drug, and the other 50 are given the drug currently in use. A psychiatrist evaluates the symptoms of all volunteers after four weeks to determine if there has been substantial improvement in the severity of the depression. Which of the following is correct?
A. This is an example of a block design.
B. Both answer options are correct.
C. This is an example of a completely randomized design.

Answers

Answer 1

Step-by-step explanation:

jffkjfkfkro3p2009uh2 that is c my answer


Related Questions

can someone help me with this? ​

Answers

Answer:

57

Step-by-step explanation:

the sum of all angles within the triangle will be equal to 180 degrees

After bisecting an angle, Kira has two New angles, each with q measure of 18°. What was the measure of the original angle?
a) 54 degrees
b)18 degrees
c) 9 degrees
d)36 degrees

Answers

Answer:

36 Degrees

Step-by-step explanation:

The definition of an angle bisector is to split the angle into 2 equal parts.

We can then add 18 + 18 degrees to get our original 36 degree angle.

Please mark this as brainliest if this helped you!! Thank you :)

Can you simplify the ones without a highlight on them

Answers

Answer:

[tex]\sf 17) \:8b+6-8b+1[/tex]

[tex]\boxed {\sf Combine \: like\: terms:}[/tex]

[tex]\sf 8b-8b=0[/tex]

[tex]\sf 6+1=7[/tex]

[tex]\boxed {7}[/tex]

__________________

[tex]\sf 18)\: t-5-2t+5[/tex]

[tex]\boxed {\sf Combine \: like\: terms:}[/tex]

[tex]\sf -5+5=0[/tex]

[tex]\sf t-2t[/tex]

[tex]\sf \:t-2t=-t[/tex]

[tex]\boxed{\sf -t}[/tex]

___________________

[tex]\sf 19)\: 4w-5w+w[/tex]

[tex]\boxed {\sf Combine \: like\: terms:}[/tex]

[tex]\boxed{0}[/tex]

___________________

[tex]\sf 20)\:12y-8+4y+y[/tex]

[tex]\boxed {\sf Combine \: like\: terms:}[/tex]

[tex]\sf 12y+4y+y=17y[/tex]

[tex]\boxed{\sf 17y-8}[/tex]

_______________________________

Linear Equation in two variables. It is a _________ equation with _______ values. Its graph is a _______.

Standard form A Linear equation can also be written in the form __________, Where m is the ______ and b is the ______ of the question.

Slope. It is the ________ or the steepness of a line. It is symbolized as m​

Answers

Answer:

linear,2,line,mx+b,gradient,y-intercept,gradient

Step-by-step explanation:

PLS MARK AS BRAINLIEST I AM GRINDING FOR VIrTUOSO

the velocity-time graph for a cycle is shown

Answers

Answer:

its not shwon btw

Step-by-step explanation:

Answer:

Step-by-step explanation:

Do you have a picture I can see?

Carolyn watched two movies with her brother. They watched the first movie from 1:38 p.m. to 2:55 p.m. and the second movie from 3:06 p.m. to 4:41 p.m. How long in total did they watch movies?

Answers

Answer:

They watched movies for 2 hours and 52 minutes.

Write 640 g as a fraction of 4.8 kg. Give your answer in its simplest form,

Answers

Answer:

Step-by-step explanation:

640g=640g

4.8kg=4800g

640g/4800g=2/15

a) 8xy(1-2x+3y)=
b) (x^2-2)(4+2x^2+x^4)

Answers

Answer:8xy-16x^2y +24xy^2

X^6-8

Step-by-step explanation:

Jim's alarm clock snoozes every 12 minutes. Jane's alarm clock snoozes every 8 minutes. After how many minutes will they both alarm clocks snoozes at the same time.

Answers

Answer:

48

Step-by-step explanation:

12*4=48

8*6=48

Answer:

24

Step-by-step explanation:

12 + 12 = 24

8 + 8 + 8 = 24

find the common factor !

Assume y=5x and dx/dt = 2 find dy/dt

Answers

The answer is “$10$”


Answer: 10

Step-by-step explanation: since dx/dt = 2, you have to create an equation. dx/dt = dy/dt * dx/dy is your equation. now we substitute. 2 = dy/dt *dx/dy. find the derivative of 5x in terms of y (dx/dy), which is 1/5. so now your equation is 2 = dy/dt * 1/5. solve for dy/dt and your answer is 10.  

A book was sold for $575 there by gaining 15%. find the cost price of the book.​

Answers

Answer:

$661.25

Step-by-step explanation:

x over 575 times 15 over 100

100=86.25

86.25 is the 15% upcharge

so add 86.25 to the original price

so 575 + 86.25

$661.25

i hope this helps, if you have question let me know! goodluck

plz mark brainliest thanks!

2g-m=5-gh solve for g

Answers

Answer:

[tex]2g-m=5-gh \: solve \: for \: g[/tex]

[tex]2g+gh=5+m[/tex]

[tex]g(2+h)=5+m[/tex]

[tex]g=(5+m)/(2+h)[/tex]

[tex]Thank \: you!!!![/tex]

PLS HELPPP TIME LIMIT!!!!

Answers

58º + 56º = 114º

180º - 114º = 66º

A bakery sells chocolate, cinnamon, maple, honey, and jelly donuts. It currently has
48 total donuts in stock. If Xiwen picks one donut from the bakery at random, she
has a 1/4 chance of picking a chocolate donut. How many chocolate donuts does
the bakery have in stock?

Answers

Since the bakery has only 48 donuts in stock and Xiwen has a 1/4 chance of picking a chocolate donut, there are a dozen (12) chocolate donuts in stock.

1/4 = 0.25

0.25 x 48 = 12

Simplify and expand (x-1)(2x+3)

Answers

Answer:

[tex] \longmapsto(x - 1)(2x + 3) \\ = 2 {x}^{2} + 3x - 2x - 3 \\ = \boxed{2 {x}^{2} + x - 3}[/tex]

2x²+x-3 is the right answer.

In a certain arithmetic sequence, consecutive terms have a positive common difference. The first 4 terms of the sequence have a sum of 80. Which of the following values CANNOT be thefirst term of the arithmetic sequence?
a - 10
b - 12
c - 16
d - 18
e - 20

Answers

Answer:

E:20

Step-by-step explanation:

I had the same question and it correct answer was E.

The first term of the arithmetic sequence will be 20. Then the correct option is E.

What is an arithmetic sequence?

Arithmetic succession or arithmetic sequential is a numerical series in which the difference between subsequent terms is uniform.

In a specific number juggling grouping, successive terms have a positive normal distinction. The initial 4 terms of the grouping have an amount of 80.

Let the four terms be a - 3d, a - d, a + d, and a + 3d. Then the sum of the four-term is given as,

a - 3d + a - d + a + d + a + 3d = 80

Simplify the equation, then we have

a - 3d + a - d + a + d + a + 3d = 80

4a = 80

a = 80 / 4

a = 20

The first term of the arithmetic sequence will be 20. Then the correct option is E.

More about the arithmetic sequence link is given below.

https://brainly.com/question/15412619

#SPJ2

What value of n makes this a true statement?
n 2
4 x 4 =16,384

Answers

Answer:

Step-by-step explanation:

22

HELPPPPPPPP
I need help asap​

Answers

The scale is 1 inch = 15 feet. Multiply the inches of the drawing by 15to get total feet:

1 2/3 x 15 = 25 feet

2 x 15 = 30 feet

The court is 25 ft by 30 feet

This is smaller than 25 by 75 so it will fit

Write an equivalent expression for 12^3 • 12^9 • 12^4 • 12^2

Answers

9514 1404 393

Answer:

  12^18

Step-by-step explanation:

Each exponent tells you the number of times 12 is repeated as a factor. The total number of repetitions of 12 as a factor in this product is ...

  3 +9 +4 +2 = 18

The equivalent expression is 12¹⁸.

How do you write 4/ 9 as a decimal?

Answers

Answer:

.4 repeating

Step-by-step explanation: divide the top number by the bottom number so 4 divided by 9

) Write an expression that is equivalent to 3(7 + x).
3(7+ x) =
+
?
7
Х
7
co
9
X
4
UT
6.
-

Answers

same question how many times...?

3( 7 + x ) = 21 + 3x

..................................

What is the solution to the system of linear equations? Show your work using either substitution or elimination.

Problem:
3x-2y=7
y=x+2

please tell me how you got the answer.

Answers

Answer:

3x - 2y = 7

Where y = x + 2

3x - 2(x + 2) = 7

3x - 2x - 4 = 7

x = 11

Step-by-step explanation:

If you are solving for X and y = x+2 then you write the equation out like this.

3x - 2(x +2) = 7 …. You substitute the x + 2 for y and then solve for x.

2x - 2 times x + 2 times - 2 = 7. That becomes 3x - 2x - 4 = 7. You then subtract 2x from 3x to give you X. Then you add 4 on one side to zero it out and add 4 to the other side. 7 + 4 = 11. This gives you the answer X = 11.

Which is greater or less than 500mL or 50 L

Answers

Answer:

50L is larger than 500 ML because 1L=1000ml and. 1ML= 1 ML.

Step-by-step explanation:

Answer: 50 L

Step-by-step explanation:

In order to compare both, let's first transform 500 mL into L. We know that 1 L is 1000 mL. So 500 mL = 0.5 L. We should now look at both numbers. The answer would be 50 L, since 50 is superior to 0.5

May I please receive help?

Answers

Answer:

7 and 4

Step-by-step explanation:because yeah

I may be wrong but I believe parallel to just be the same as the original line and the perpendicular I believe is just -7,4 but I’m definitely not sure and just use this to guide cause I haven’t done this in so long.

Help me please!!!!!!!

Answers

Answer:

I think she only needs 1

Step-by-step explanation:

6x6= 36, and since one can needs 36 lucia would only need one

Answer:

1

Step-by-step explanation:

The area of the fence is:

l*b

= 6 * 6

= 36ft^2

The amount that 1 tin of varnish can cover: 36ft^2

Hence, only one tin is required.

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

PLEASE HELP WILL GIVE BRAINIEST!!! Alex has 25 red, yellow, and orange stress balls. He has twice as many red stress balls as yellow stress balls and three fewer orange stress balls than yellow stress balls. Write and solve an equation to determine how many of each color stress ball alex has.

Answers

Answer: O- 9.5 Y- 12.5 R-25

Step-by-step explanation: Divide 25 by 2 and 12 goes into 25 twice for 24, and then you would be left with 60 and 12x5=60 so you get 12.5 for Yellow then you would subtract 3 from 12.5 for 9.5 for Orange. Tell me if theirs anything you dont understand.

Find the slope of the line passing through (-2, 7) and (0, 1)

Answers

Answer:

-3

Step-by-step explanation:

The equation to find this is:

[tex]m = \frac{y_{2}- y_{1} }{x_{2}-x_{1} }[/tex]

So, plugging the numbers in:

[tex]\frac{7- 1 }{-2-0 } = -3[/tex]

Hands-on equations lesson 10

Answers

Answer:

Step-by-step explanation:uhHoAnd ghiorioghiltihlgitrghile

If A FGH A JKL
then FG
[?]
Enter the letters that belong in the
green box.
Enter

Answers

Answer:

JK

Step-by-step explanation:

Since the triangles are congruent then corresponding sides are congruent

Δ FGH ≅ Δ JKL

The corresponding sides are FG and JK

Express a^ −4 as a positive exponent

Answers

Answer:

I didn't know what is answer

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