Dominic wants to test if one of two types of fertilizer (a standard fertilizer and a new product) is better for producing melons of equal weight after a three-month fertilization program. Dominic has two identical land plots (1 and 2) and is considering how to assign 30 melon plants, each of which has a numbered tag, to the fertilizer. What is the best way to do this as a matched-pairs design?
A. Put all the odd-numbered melons in plot 1 and the even-numbered melons in plot 2. Then give the standard fertilizer to plot 1 and the new product to plot 2.
B. Assign the melons completely at random to the two plots using a coin flip, heads meaning plot 1 and tails meaning plot 2. Then give the standard fertilizer to plot 1 and the new product to plot 2.
C. Obtain pairs of melon plants whose seedling heights are roughly equal at the start of the experiment and randomly assign one of the pair to plot 1 and the other to plot 2. Then give the standard fertilizer to plot 1 and the new product to plot 2.
D. Obtain pairs of melon plants whose seedling heights are roughly equal at the start of the experiment and put the taller of each pair into plot 2. Then give the standard fertilizer to plot 1 and the new product to plot 2.
E. Divide the 30 melon plants into two groups, with the 15 tallest seedlings in one group. Randomly choose which plot to assign the tallest plants and assign the smallest plants to the other plot. Then give the standard fertilizer to plot 1 and the new product to plot 2.

Answers

Answer 1

Answer:

C

Step-by-step explanation:

A. is wrong because having a different height for each seedling and not trying to keep it equal is simply worse than making sure the heights are identical.

B. Completely wrong because it would likely result in 1 plot having more melon seedlings than the other.

C. Correct because it makes sure the seedlings are the same height at the beginning of the experiment, allowing less randomness in the experiment.

D. Putting the taller of a each pair for 1 plot makes it the experiment rigged in favor of the plot with taller seedlings

E. Same issue as D.


Related Questions

I will mark brainly if anyone can answer this
-2-4(6p-5)
-5(v-6)+10v
and 25 pts

Answers

Answer:

Ich weiß nicht =13

die Antwort -2 -4 (6p-5)

Step-by-step explanation:

Write an equation of the line given an intercepts. Express in standard form.
1. x – intercept is 4 and y – intercept is 3.
2. x – intercept is -2 and y – intercept is 5.

Answers

Answer:

Required equations in standard form are:

1. 3x+4y=12

2. -5x+2y = 10

Step-by-step explanation:

Standard form of equation is given as:

[tex]Ax+By = C[/tex]

1. x – intercept is 4 and y – intercept is 3.

The points will be:

(4,0) and (0,3)

Slope: m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m = \frac{3-0}{0-4}\\m = -\frac{3}{4}[/tex]

Slope intercept form of line is:

[tex]y = mx+b[/tex]

Putting the values of m and b(y-intercept)

[tex]y = -\frac{3}{4}x+3[/tex]

Multiplying whole equation by 4

[tex]4y = -3x+12\\3x+4y = 12[/tex]

2. x – intercept is -2 and y – intercept is 5

The points will be:

(-2,0) and (0,5)

Now

[tex]m = \frac{5-0}{0+2}\\m = \frac{5}{2}[/tex]

Putting the values of m and b in slope intercept form

[tex]y = \frac{5}{2}x+5[/tex]

Multiplying the equation by 2

[tex]2y = 5x+10[/tex]

[tex]-5x+2y=10[/tex]

Hence,

Required equations in standard form are:

1. 3x+4y=12

2. -5x+2y = 10

I WILL GIVE THE BRAINLIEST
Jack works after school. each day he earns a set amount, plus an hourly wage. the following table represents a linear function f jack can use to determine to his pay.
hours: 1, 2, 3 | Pay: 18, 28, 38
SLOPE is 10.
Using the slope, find the y-intercept and write the function.​

Answers

Answer:

The y intercept is (0, 8). The equation of the function is f(x) = 10x + 8

Step-by-step explanation:

Given that after 1 hour of work, Jack will make 18 dollars and the slope is 10, subtract 10 dollars from 18 dollars to find his set amount, or y-intercept.

18 - 10 = 8 dollars.

Now that we have the m and b values, we can create our equation.

The equation in standard form is f(x) = mx +b, where m = the slope and b = the y-intercept. Plug our values in and the equation will be f(x) = 10x + 8. You can test if this is correct by plugging in x values from the table and seeing if your calculated value correctly corresponds to the given y value in the table.

What are the zeros of this function

Answers

There is no picture attached, but zeroes mean x values.



Shipping Company A charges $14 plus $2.25 a pound to ship overnight packages. Shipping Company B charges $20 plus $1.50 a pound to

ship an overnight package. For what weight is the charge the same for the two companies?

Let p represent the number of pounds. Select the correct values to write an equation to represent the situation

Answers

Answer:

8 pounds

Step-by-step explanation:

Shipping Company A = 14 + 2.25p

Shipping Company B = 20 + 1.50p

Where,

p = the number of pounds.

For what weight is the charge the same for the two companies

Equate the charges of the two companies

14 + 2.25p = 20 + 1.50p

14 - 20 = 1.50p - 2.25p

-6 = -0.75p

Divide both sides by -0.75

p = -6 / -0.75

= 8

p = 8 pounds

If we estimate that 10 people can fit in a 5ft by 5ft area, then what would be your estimate of how many people can fit on a basketball court measuring 94ft by 50ft?

Answers

Answer:

1,880 people will fit in 94 ft by 50 ft

Step-by-step explanation:

We can estimate this using the area

For 5 ft by 5ft ; 10 people can fit in an area of 5 * 5 = 25 ft^2

In an area of 94 ft by 50 ft, the number of people that can fit will be;

let’s start with the area

Area = 94 * 50 = 4,700 square feet

10 people will fit in 25 square feet

x people in 4,700 square feet

25 * x = 10 * 4700

25x = 47,000

x = 47000/25

x = 1,880 people

what is 9 time 64 what does it equal to

Answers

Answer:

It's 576 if you mean 64 times 9!

Step-by-step explanation:

please help i’ll give brainliest

Answers

Answer:

87.5

Step-by-step explanation:

2 inches is 70 miles. .5 inches is 17.5 and add them together and you get 87.5.

Please mark brainliest.

Answer: D. 87.5 miles

Step-by-step explanation:

They have given us a scale that 1 inch = 35 miles.

Since the distance is 2.5 inches, we have to multiply 2.5 inches by 35 miles.

1 in. = 35 miles

2.5 in = x

2.5 times 35 = 87.5 miles

hope this helps!


1. Dilate A using P as the center of dilation and a scale factor of 3. Label the new point
A'.
2. Dilate Busing Pas the center of dilation and a scale factor of 2. Label the new point B'

Answers

Answer:

Step-by-step explanation:

Rule for the dilation of a point by a scale factor 'k',

(x, y) → (kx, ky)

If we impose this rule in this problem,

k = [tex]\frac{\text{Distance of A' from P}}{\text{Distance of A from P}}[/tex]

1). If k = 3

   Therefore, Distance of A' from P = 3(Distance of A from P)

   And point A' will be on the third circle.

2). If k = 2

   Distance of B' from P = 2(Distance of B from P)

   Since, B is on circle 2, B' will be on circle 4.

Now we can plot these points A' and B' on the graph.

After the dilation point A becomes A' and it is at a distance of 3 units from point P and after the dilation point B becomes B' and it is at a distance of 2 units from point P.

1)

Given :

Dilate A using P as the center of dilation and a scale factor of 3.

Let the coordinates of point A be (x,y) then after dilation point A becomes A'(3x , 3y). So, the distance of the point A' from the point P is 3 units

2)

Given :

Dilate Busing P as the center of dilation and a scale factor of 2.

Let the coordinates of point B be (x',y') then after dilation point B becomes B'(2x' , 2y'). So, the distance of the point B' from the point P is 2 units

For more information, refer to the link given below:

https://brainly.com/question/2856466

32a + 28 = 0
(Factor completely.)

Answers

Answer:           0.875

Step-by-step explanation:

what is 4.25% as a decimal ​

Answers

Answer:

0.0425

Step-by-step explanation:

Answer:

0.0425

Step-by-step explanation:

hope this helped ^^

Please Help

Please let me know how to do it, I don't only want the answer. Thank you!
(4y+3)-(y-2)

(There is no equal sign in the math problem)

Answers

Add like terms. Ignore parenthesis. And change the negative in front of the 2 into a positive. 4y minus y and 3 plus 2 makes... 3y+5

This question is simple, (and you might get a brainliest if you answer within 5 minutes of the time it was posted!) It is basic, but you just have to answer quickly and with an actual answer and an good explanation: what is 1/2 Multiplied by (4+8) btw the answer has to be correct, and i will randomly pick someone's correct answer and explanation for brainliest! I might or might not pick the first person, it just depends to who i want to give the brainliest to. (P.S..........And please DON'T be a Karen and report this! I'm just tryna give someone a brainliest, so chill out, Karens!)

Answers

Answer:

6

Step-by-step explanation:

1/2 = .5

.5 x (4+8)

.5 x (12)

= 6

Simplify: 3(4x-5) - (3x+2)

Answers

Answer:

Step-by-step explanation:

3(4x-5)-3x+2 work the ()

12x-15-3x+2 combine like terms

9x-13

i need help with this one Eight cookies cost $12. At this rate, how much will 10 cookies cost?

Answers

Answer:

$15

Step-by-step explanation:

12/8 = 1.5 = 1.50 per cookie

1.50* 10 = 15

Please help me with this equation

Answers

Answer:

u just expand the brackets out and make a linear equation to solve from there

Step-by-step explanation:

PLEASE HELP!!! I WILL MARK BRAINLY AND ITS WORTH 15 POINTS!!!

Answers

its 10 points

c and d cause each  Px = 4 for c and 10 for d.

Find the value of x that makes this a true statement (1/27)^x=3

Answers

Answer:

x = -1/3

Step-by-step explanation:

Given

(1/27)^x=3

Solving for x

(1/27)^x=3(1/3)^3x = 33^-3x = 3^1-3x = 1x = -1/3

Which property should be used next in this solution process?
3x + 2 + 3 = 7(x - 1) – 4
3x + 5 = 7(x - 1) – 4
A. Commutative Property of Addition
B. Identity Property of Multiplication
C. Associative Property of Multiplication
D.
Distributive Property

Answers

Answer:

niwebfasfbjsdfb

Step-by-step explanation:

jsdfhsdbfjhadsjbdsfhb

the answer would be d

Your MOM has a 72 boyfriends and your dad see your mom cheating on you by kissing them and 9 of them jump off the window how many boyfriends are in the room still?

Answers

Given:

Total number of boyfriends = 72

Number of boyfriends who jump off the window  = 9

To find:

The remaining number of boyfriends.

Solution:

We need to subtract the number of boyfriend who jump off the window from the total number of boyfriends to get the remaining number of boyfriends.

[tex]\text{Remaining boyfriends}=72-9[/tex]

[tex]\text{Remaining boyfriends}=63[/tex]

Therefore, the number of remining boyfriends is 63.

Answer:

About 79 million

Step-by-step explanation:

Answer:

a lot

89 x 67= 292829

So hence that's the answer

Hope this helps! :)

I need help with this

Answers

Answer:

A, B, and C

Step-by-step explanation:

We can substitute each number into each equation

2 < -1 + 5 true

2 > 1 true

1 > 0 true

A is correct

4 < -1 + 5 true

4 > 1 true

1 > 0 true

B is correct

3 < -0 + 5 true

3 > 0 true

0 > 0 true

C is correct

5 < -2 + 5 false

D is incorrect

answered
If y = 3x and 2x – 4y = 3, then x=

Answers

Answer:

x= -3/10

Step-by-step explanation:

putting value

2x - 4(3x) =3

2x- 12x = 3

-10x = 3

x = -3/10

z = 24a - 2b

solve for a​

Answers

Answer:

a= (Z + 2b)/24

Step-by-step explanation:

given:

Z = 24a - 2b

to solve for a, we will try to move "a" to one side of the equation and all other terms to the other side:

Z = 24a - 2b    (add 2b to both sides)

Z + 2b = 24a -2b +2b

Z + 2b = 24a  (switch sides)

24a = Z + 2b (divide both sides by 24)

a/24 = (Z + 2b)/24

a= (Z + 2b)/24

Find the Slope Of The A and B

Answers

A. (Y2-y1)/(x2-x1)
(-1, -1) and (1,3)
(3+1)/(1+1) = 4/2 = 2
The slope is 2

B. (-2, 2) and (2, -2)
(-2-2)/(2+2) = -4/4 = -1
The slope is -1

Select ALL 4 ways of displaying a relation.
Scatter plots
In words
Mapping Diagrams
Table
o Pie Graph
Graph
O Ordered Pairs

Answers

Answer:

Scatter plots

Pie graph

graph

in words

(3x +8) - 6(2.5x - 3)

Answers

If you’re looking to simply the expression, the answer is -12x+26

Which representation does not show y as a function of x?

Answers

Answer:

The letter j because the points have to be functioned as a straight line

Plzz plzzz explain this!!!!

Answers

do you need for both or just one?

Answer:

hope it helps...

Step-by-step explanation:

please comment me if it is really helpful ..

12 IF APOR is similar to AXYZ, which of the following statements must be true?

Answers

Answer:

F

Step-by-step explanation:

There's no Q in APOR or AXYZ

URGENT HELP RN
what is the solution set of this inequality? 1<|x-2|<5
(-3, ) U ( , )

Answers

We first need to consider the absolute value of x-2 to find the solution set of this inequality, The solution set of this inequality is (3, 4, 5).

What is absolute value?

An absolute value is a number's distance from 0 on the number line.

Since the inequality is 1<|x-2|<5, we can then determine the two extreme points of the absolute value of x-2.

These points are 1 and 5.

Now, to find the solution set of this inequality, we need to find the two points that are 1 and 5 units away from the point x = 2.

The two points that are 1 and 5 units away from x = 2 are 3 and 5 respectively.

This is because the absolute value of x-2 has two extreme points, which are 1 and 5 units away from the point x = 2.

Therefore, the two points that are 1 and 5 units away from x = 2 are 3 and 5 respectively.

For more questions related to inequality

https://brainly.com/question/24372553

#SPJ1

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