Researchers want to test the effects of a new weight loss program. They believe that gender is a significant factor. The participants are divided by gender. Then, within each group, participants are randomly assigned to either the treatment or control group. Which of the following would be the most effective to test the effects of the new weight loss program?
a) Alongitudinal observational study
b) A matched-pair design experiment
c) A randomized block design experiment
d) A completely randomized design experiment

Answers

Answer 1

Answer:

C: A randomized block design experiment

Step-by-step explanation:

We are told the participants are divided by gender into groups which we can call blocks. Then, within each group, they are randomly assigned to either the treatment or control group. This means they are assigned treatments within each block.

A randomized block design is defined as an experimental design whereby the experimental units are divided into groups which we call blocks. After that treatments will be randomly assigned to the experimental units within each of the blocks.

Thus, this corresponds with our question and we can say it's a randomized block design experiment.


Related Questions

Use the drop-down menus to label the points on the number line.

Answers

Answer:

Step-by-Use the drop-down menus to label the points on the number line.

Point A is at . - 1 2/4

Point B is at . - 3/4

Point C is at 3/4.    

Point D is at  explanation:1 3/4

The position of the points A, B, C, and D on the number line will be –3/2, –3/4, 3/4, and 7/4.

What is coordinate geometry?

Coordinate geometry is the study of geometry using the points in space.

The number line is shown below.

From the figure, we can observe that there are 4 sections between each successive numbers.

The point A is at –1 2/4 that is –3/2.

The point B is at –3/4.

Then the point C is at 3/4.

And the point D is at 1 3/4 that is 7/4.

More about the coordinate geometry link is given below.

https://brainly.com/question/1601567

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License plates are made using letters followed by digits. How many plates can be made if repetition of letters and digits is​ allowed

Answers

How many plates can be made if repetition of leters and digits is allowed? 26*26*10*10=67,600 plates can be made.

this is what i looked up and got sry if its not

NEED HELP PLEASE 16. A car dealer has 90 cars in the new car lot. The partially completed two-way table shown categorizes the cars by their color and whether or not they have backup
cameras. How many cars on the lot do not have backup cameras?

A. 45
B. 64
C. 53
D.8

Answers

I think it might be 64 (B)

Answer:

its 53. i just took the test

Step-by-step explanation:

Arectangle on a coordinate plane is translated 5 units up and 3 units to the left. Which rule describes the translation?
x. y) x+5, y-3)
Oxy)- + 5.y + 3)
(K.)- K-3.y + 5)
(.)-(3.y+ 5)

Answers

Answer:

The first one x=5, y-3

Step-by-step explanation:

The dispersion among sample means is less than the dispersion among the sampled items themselves becausea:______

a. Each sample is smaller than population
b. Very large value are averaged down
c. Sampled items are all drawn from the same population
d. None of thesee.
e. b and c

Answers

Answer:

The dispersion among sample means is less than the dispersion among the sampled items themselves because:______

b. Very large values are averaged down

Step-by-step explanation:

The sample means represent average values obtained from both large and moderate values.  Through the process of averaging, the data values obtained as the sample means are much closer to the true values.  This is why the dispersions among the sampled items will be larger than the dispersions among the sample means.  Sample dispersions describe how spread out the data values are on the number line.

Learning Task No. 3: Solve the following equation. Then compare
your answer by writing <, > and = in your notebook.
1.5 + 8 - 2 - 7
26 = 13 x 10 - 17
2. 22 x 3 - 42 + 20
72 - 2 + 13 - 16
3. 12 + 13 - 4 x 5
16 - 4 x 3 - 7
4. 45 - 10 x 2 + 17
16; 8 x 9-5 + 30​

Answers

Answer:

(1)   <

(2)  <

(3)   =

(4)   <

Step-by-step explanation:

[tex]By \ applying \ the \ rule \ of \ BODMAS \ (i.e. \ Bracket, \ of, \ Division,\ Multiplication, \ Addition,[/tex][tex]\ and \ Subtraction).[/tex]

(1)

5 + 8 - 2 -7 = 13 × 10 - 17

13 - 9 = 130 - 17

4 < 113

(2)

22 × 3 - 42 + 20 = 72 -2 + 13 - 16

66 - 22 = 72 + 11 - 16

44 < 67

(3)

12 + 13 - 4 × 5 = 4 × 3 - 7

12 + 13 - 20 = 12 - 7

5 = 5

(4)

45 - 10 × 2 + 17 = 8 ×9 - 5 + 30

45 - 20 + 17 = 72 + 25

42 < 97

1 point
19. Write the equation for this line in slope-intercept form. (y=mx+b)*

Answers

Answer:

y=-4x+5...

Step-by-step explanation:

y=-4x+5...

please help i have 1 hour to complete this

Answers

Answer:

for the first one its C,D and E

but for the second one i dont

know so sorry

Step-by-step explanation:

can anyone help me thanks

Answers

Answer:

b

Step-by-step explanation:

dbhdkcnsbnadjfmmfejsdbfjkgkf

PLEASE HURRY FOR BRAINLIEST I BEG YOU!!

Answers

Answer:

5

Step-by-step explanation:

i did this before

need help with trig homework!

Answers

B hope I got it right :)


SOMEONE HELP ME THIS IS DUE TODAYYYY

Answers

okay so the answer is x= 9.5 y= 9

= 3x + 4, what is y when x is 1, 2, and 3

Answers

Answer:

when x is 1 y is 7

when x is 2 y is 10

when x is 3 y is 13

Step-by-step explanation:

I need help, also give explantion please

Answers

Answer:

[tex] \huge \: 8 {x}^{3} \times 3 {x}^{9} = 24 {x}^{12} [/tex]

An estimated 3 out of every 25 men are left-handed.
What percent of men are lert-handed?

Answers

Answer:

12%

Step-by-step explanation:

3 / 25 = 0.12

Move the dot 2 places to the right to get a percentage.

Answer:

12%

Step-by-step explanation:

3/25 * x/100

25x = 300

x=12

Three times the number of polar bears is more than
twice the number of polar bears plus 45.
a. Write an inequality to model this situation.
b. Which of the following could possibly be the
number of polar bears?
A. 38
B. 40
C. 45
D. 48

Answers

Answer:

a. [tex]3x>2x+45[/tex]  b. [tex]48[/tex]

Step-by-step explanation:

For b the number of polar bears must be greater than 45 in order for there to be more on the left side.

Hope this helps! :)

Lee and Marisol are conducting a science experiment to identify different kinds of macromolecules in food. They prepare the following table to help them remember the chemical reactions that indicate the presence of each type of macromolecule they are studying.

Answers

Answer:

Step-by-step explanation:

3) The mean of a set of data is 4.68 and its standard deviation is 2.83. Find the z score for a value of 9.38.

Answers

Answer:

1.66

Step-by-step explanation:

The mean of a set of data is 4.68 and its standard deviation is 2.83. Find the z score for a value of 9.38

Given that :

Mean (m) = 4.68

Standard deviation (s) = 2.83

Value of x = 9.38

Zscore = (x - mean) / standard deviation

Zscore = (9.38 - 4.68) / 2.83

Zscore = 4.7 / 2.83

Zscore = 1.6607773

Hence, Zscore for a value of 9.38 is 1.66

Which number line shows -3, -2, 1, and 3 correctly plotted?

Answers

Answer:

i need a picture of the graphs

Step-by-step explanation:

HELP ASAP also the I couldn't fkfit the whole thing so that other part of the triangle is a O​

Answers

Answer:

6/3 or 2?

Step-by-step explanation:

i am not completely sure though. I went purely based off of MN/RS, which gave me the ratio 6/3. That also equals 2.

Given f(x) = X-2 and g(x)= 1/x-2 which of the following values is not in the domain of (fog)(x)?

0
1/2
2
4​

Answers

I think I had this earlier and if so I think the answer was 2

Answer:

The answer is 2

Step-by-step explanation:

Edge 2021

Enter the midpoint of the segment whose endpoints are (8, 7) and (-2, 16).​

Answers

Answer:

(3, 11.5)

Step-by-step explanation:

The coordinates of midpoint are ( [tex]\frac{x_{1} +x_{2} }{2}[/tex] , [tex]\frac{y_{1} +y_{2} }{2}[/tex] )

( [tex]\frac{-2 + 8}{2}[/tex] , [tex]\frac{16+7}{2}[/tex] ) = ( 3 , 11.5 )

Answer:

(3, 11.5)

Step-by-step explanation:

midpoint=X1 + X2 , y1+y2

2 2

= 8 + (-2) , 7 + 16

2 2

= ( 6 /2 , 23/2)

= ( 3, 11.5)

there are 20 orange and purple pencils. the number of orange pencils is 1 less than 2 times the number of purple pencils. how many orange and purple pencils are their?

Answers

Answer:

im so srry 25 im not sure

Step-by-step explanation:

i need points :(

What is grater -1.5 or -3/2

Answers

Answer:

the first on is greater

Step-by-step explanation:

please trust me

IF a= 6 and b= 7, then 4a(3b+5) + 2b =?

Answers

Answer:

64

Step-by-step explanation:

4a(3b+5)+2b

Substitution

4(6)[3(7)+5]+2(7)

Order of operations (PEMDAS)

4(6)[21+5]+2(7)

4(6)+26+2(7)

24+26+14

50+14

64

Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, be safe and wash your hands. Happy Holidays.

The answer is 64 I think

In Mona’s new video game she earns 30 points for each fish caught and 80 points for each octopus captured, but she loses 15 points every time she captures a crab. Which expression represents the total number of points Mona will earn if she catches x fish, y octopi, and z crabs?
95 (x + y minus z)
110 (x + y) minus 15 z
30 x + 80 y minus 15 z
30 + x + 80 + y minus 15 + z

Answers

Answer:

c. 30x+80y-15z.

Step-by-step explanation:

Answer:

CCCCCCCCCCCC

Step-by-step explanation:

(2x-40)° = (x+10)° solve for x

Answers

Answer:

X = 50

Step-by-step explanation:

2x-x = 40 + 10

X =50

Take the x to be on the same sides and the normal numbers in the other side. Then work them out.

what is value of expression 3x7+2^3/(3+1)

Answers

Answer:

The value of the expression is 23.

Step-by-step explanation:

3x7+2^3/(3+1) <----- Here is the original problem.

3x7+2^3/4 <----- Simplify what's in the parentheses.

21+2^3/4 <----- Do your multiplication (in the front)

21+8/4 <----- Simplify the exponent. (2 x 2 x 2 = 8)

21+2 <---- Do the division.

23 <----- Here is the correct answer.

Hope this helps! :D

If you mix the blue cheese and the cream cheese together, how many cups will there be in all? Write your answer as a reduced fraction in the form a/b. Type your answer with a space between the fraction and whole number.



_______cups?​

Answers

this is the working

The answer will be one and three eighth cups

Step-by-step explanation:

hope this helps

PLZ RESPOND ASAP! 50 POINTS
classify which numbers are rational or irrational


The given numbers are:
5/4
√100
7.3
0.00247
√4/9
√2/24
0.01 with the line above the 1

Answers

Answer:

5/4 = rational   √100 = rational 7.3 =rational 0.00247 = rational √4/9 = irrational √2/24 = irrational 0.01 (with the line) = irrational

Step-by-step explanation:

an irrational number is an infinitely repeating number that can not be written as a fraction, instead it must be written as a decimal. A rational number is a number that can be made by dividing two integers (an integer is a number with no fractional part).

The numbers are,

a. 5/4 = Rational

b. √100 = Rational

c. 7.3 = Rational

d. 0.00247  = Rational

e. √4/9  = Irrational

f. √2/24  = Irrational

g. 0.01 (with the line above the 1) = Irrational

What is Number system?

A system of writing to express the number is called number system.

Given that;

The numbers are,

5/4, √100 , 7.3 , 0.00247, √4/9 , √2/24 , 0.01 with the line above the 1.

Now,

Check the numbers as;

5/4  = 1.25

So, The number is a Rational number.

√100 = 10

So, The number is a Rational number.

7.3 = 7.3

So, The number is a Rational number.

0.00247 = 247/100000

So, The number is a Rational number.

√4/9 = 2/3 = 0.666.......

So, The number is a Irrational number.

√2/24

So, The number is a Irrational number.

0.01 with the line above the 1

So, The number is a Irrational number.

Thus, The numbers are,

a. 5/4 = Rational

b. √100 = Rational

c. 7.3 = Rational

d. 0.00247  = Rational

e. √4/9  = Rational

f. √2/24  = Irrational

g. 0.01 (with the line above the 1) = Irrational

Learn more about the Rational number visit:

https://brainly.com/question/22221295

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