Researchers are investigating the effect of ph level in water on the breeding habits of the moon jellyfish. As part of a laboratory experiment, they will randomly assign one of three treatments, low ph , medium ph , or high ph , to the water in the tanks that hold the jellyfish.

Answers

Answer 1

In this experiment randomization tends to minimize the effects of uncontrolled variables, such as water temperature, so that such factors are not confounded with the treatment effects.

In an experiment, variables are carefully controlled in order to ensure the reliability of the results. Usually, treatments are assigned randomly to experimental units. Randomization refers to the assignment of experimental units to groups by chance.

Randomization is important in this experiment because it  tends to minimize the effects of uncontrolled variables, such as water temperature, so that such factors are not confounded with the treatment effects.

Missing parts;

Which of the following is the best reason for the random assignment of a treatment level to an experimental unit?

A. Randomization tends to minimize the effects of uncontrolled variables, such as water temperature, so that such factors are not confounded with the treatment effects.

B. Randomization will make up for improper experimental design, data collection, and analysis.

C. Randomization makes the analysis easier since the data can be entered into the computer in any order.

D. Randomization is required by statistical consultants before they will analyze the experiment.

E. Randomization means that the experiment would not need to be replicated

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Related Questions

Maria, age 28, wants to pay no more than $300 a year in life insurance. What is the face value of the largest 20-year term policy she can buy without spending more than $300 annually? Annual life insurance premium (per 1,000 dollars of face value) for age 28. A 10-year term for female is 1. 28, 15 year term for female is 1. 54, 20 year term for female is 1. 89, and whole life for female is 9. 46. A. $234,000 b. $158,000 c. $11,000 d. $567,000 Please select the best answer from the choices provided A B C D.

Answers

Answer:

B

Explanation:

The face value of the largest 20-year term policy that Maria, age 28, can buy without spending more than $300 premium annually is b. $158,000.

Data and Calculations:

Expected annual premium payable = $300

Term period = 20 years

Annual life insurance premium (per 1,000 dollars of face value) for age 28 are as follows:

A 10-year term for female is 1.28,

15 year term for female is 1.54

20 year term for female is 1.89

Whole life for female is 9. 46

Annual Premium = Premium Rate/$1,000 x Face Value

Face Value = Annual Premium/Premium Rate x $1,000

Face Value = $158,730 ($300/$1.89 x $1,000)

Thus, the face value of the largest 20-year term policy that Maria, age 28, can buy without spending more than $300 premium annually is b. $158,000.

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Which of the following conclusions is best supported by pitt’s speech?.

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Statement that describes conclusions that supported Pitt’s speech is C:British leaders saw their country as the strongest opponent of the French Revolution.

British rule was seen to involve in political and financial affairs of the whole continent, They have the strong mentality that they serve as strongest opponent of the French Revolution.

This is because of the situation in France, they want to intervene since British rule always desire for peace even though they have their own inner mission, they always like to amend falling system.

THIS IS THE COMPLETE QUESTION.

Which of the following conclusions is best supported by Pitt’s speech?

A) British leaders did not see the French Revolution as a threat.

B) British leaders strongly desired peace with France.

C) British leaders saw their country as the strongest opponent of the French Revolution.

D) British leaders did not want to get involved in continental European affairs.

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Cierto o falso: Cuando utilices el pretérito, estás hablando de lo que pasó.

Answers

Answer:

True

Explanation:

Hydrogen and nitrogen combine to form ammonia. When nitrogen and hydrogen bond, nitrogen pulls the electrons from hydrogen toward itself. Which statement about the reactants is correct?.

Answers

Answer:

Nitrogen is more electronegative, so it pulls the electrons in the bond closer to itself

Explanation:

no statements given

Which of these is the function of the external oblique muscles?.

Answers

The external oblique muscle is located in the abdomen, towards the anterior and lateral part, whose function is related to the rotation of the torso and lateral compression of the abdomen.

The external oblique muscle is a muscle with skeletal striated fibers, together with the minor oblique, pyramidal, transverse and rectus major are those located in the anterior and lateral abdominal area.

Its main function at the moment of contracting its fibers on one side of the abdomen, is to produce a rotation of the thorax accompanied by the movement of the upper part of the contracted muscle to the opposite side.

Participates in forced expiration and stabilizes the lumbar spine when lifting weights and the muscles that originate from the pelvis.

Therefore, we can conclude that the external oblique muscle determines lateral (ipsilateral) flexion and rotation to the contralateral side.

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An aircraft travels with the wind for 120 miles in 0. 75 of an hour. The return trip is flown against the wind and takes exactly 1 hour. Which system of linear equations represents x, the speed of the plane in miles per hour, and y, the speed of the wind in miles per hour? recall the formula d = rt. 0. 75(x + y) = 120 x − y = 120 0. 75(x − y)= 120 x + y = 120 120(x + y) = 0. 75 120(x − y) = 1 120(x − y) = 0. 75 120(x + y) = 1.

Answers

Answer:

a

Explanation:

0.75(x+y)=120 and x-y=120

Triangle J K L is shown. Point N is the midpoint of side J L and point M is the midpoint of side K L. The length of J K is 19. 6 meters. The lengths of J N and N L are 7. 4 meters. The lengths of K M and M L are 10. 7 meters. What is the distance between points M and N? meters.

Answers

Answer:

9.8

Explanation:

just did assignment

Given a fixed amount of gas held at constant pressure, calculate the volume it would occupy if a 3. 50 l sample were cooled from 90. 0oc to 30. 0oc.

Answers

Answer:

I genuenly don't know

Explanation:

Which of the following is not the benefit of recycling?.

Answers

Answer choice where are they?

A desert is very hot during the day and receives very little rain. Which plants will likely survive in this kind of environment?.

Answers

Explanation:

A cactus is a plant that would survive

A desert is very hot during the day and receives very little rain. The plants that will likely survive in this kind of environment are plants with waxy coatings. Thus the correct option is A.

What is the environment?

The environment is referred to as the surroundings where all living and nonliving things are present. The environment contains different types which include the atmosphere, hydrosphere, lithosphere, and biosphere.

Desert is referred as dryland which constitutes more than one-fifth of the planet's landmass and can be found on every continent. These regions experience a "moisture imbalance," which indicates that they typically lose more moisture to drainage.

The gravity of the waxy substance on their leaves, floating plants, which have short branches, would sink underwater if not for the weight of the leaves. The plant is shielded from hazards outside by the waxy layer, which also holds moisture.

Therefore, option A is appropriate.

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The complete question is Probably

A desert is very hot during the day and receives very little rain.

Which plants will most likely survive in this kind of environment?

answer choices

plants with waxy coatings

plants with few roots

plants with large leaves

plants with soft stems

What mass of glucose (C6H12O6) should be dissolved in 12. 0 kg of water to obtain a solution with a freezing point of -5. 8 ∘C?.

Answers

Answer:

6.740 kg

Explanation:

6.740 kg is the mass of glucose (C6H12O6) should be dissolved in 12. 0 kg of water to obtain a solution with a freezing point of -5. 8 ∘C.

What is freezing point?

The temperature at which a liquid freezes is known as the freezing point. The freezing point normally rises with increased pressure, much like the melting point does. Combinations and some organic materials, such lipids, have freezing points that are lower than melting points.

The freezing point of a material is the temperature at which a liquid turns into a solid. The liquids' freezing temperatures can be super-cooled much below, postponing the point at which they solidify. The freezing point of water is 0 °C, or 32 °F.

The most common and commonplace example of freezing is the creation of ice cubes in an ice tray when water is placed in the freezer for a period.

Thus, it is 6.740 kg.

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Which of the following describes the zeroes of the graph of f(x) = 3x6 30x5 75x4?.

Answers

Answer:

Explanation:

f(x) = 3x6 30x5 75x4?.

Answer

the 4th option

Explanation:

The auction price of the game system is higher than the retail price because. If you waited six months to buy the phone, you would have saved.

Answers

Answer:

Demand is higher than supply

$200

Explanation: I guessed and got it right

Answer:

The auction price of the game system is higher than the retail price because

✔ demand is higher than supply

.

If you waited six months to buy the phone, you would have saved

✔ $200

.

Explanation:

Consider the equilibrium describing the endothermic dissolution of a solid in water. Z n ( o h ) 2 ( s ) − ⇀ ↽ − z n 2 + ( a q ) + 2 o h − ( a q ) if you have a saturated solution at equilibrium, what changes could you make to increase the solubility of the compound?.

Answers

To drive this equilibrium in the forward direction, for a saturated solution, the temperature of the system must be increased.

We have been told that the reaction;  Zn(OH)2 ( s ) ⇄ Zn2+(aq) + 2OH − (aq), is an endothermic reaction. Recall that in an endothermic reaction, energy is absorbed and the energy of the products is greater than that of the reactants.

In order to drive this equilibrium in the forward direction, for a saturated solution, we can Increase the temperature of the solution. More Zn(OH)2 will dissolve in the solution.

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Why do Jefferson and Stanton include these similar excerpts in their documents? because they are heartfelt praises intended to applaud activists because they mention the Founding Fathers in an attempt to inspire because they are powerful calls to change that define their causes because they are battle cries that demand physical confrontation.

Answers

Both Jefferson and Stanton decided to include the excerpt in question because they are powerful calls to change that define their causes.

The excerpt in question relates to the right of the people to remove a government that is no longer beneficial to the people.

This call:

Was in relation to the British government becoming tyrannical Was a strong and powerful call to rally people behind the cause of seeking independence

Jefferson and Stanton both understood the benefit of using this call to action and so we can conclude that they both used it because it was powerful and defined their cause effectively.

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Answer:

C is correct

Explanation:

A vendor sells hot dogs and s sodas.

Answers

A)100d/(s+2h)

If S is the cost of soda in cents, then

h*2S +s*S = 100*d

S = 100d/(s+2h)

- BRAINLIEST answerer

What are the possible weaknesses of this peer approach to valuation.

Answers

Answer:the chosen peers might not be true competitors, the company might have multiple divisions, and the most appropriate competitors might not have p/e multiples

Explanation:

Which answer choice is a solution to the inequality mc001-1. Jpg? –1 1 1. 5 0.

Answers

Answer:

c, 1.5

Explanation:

Answer:C) 1.5

Explanation:

Four seniors and six juniors are competing for four places on a quiz bowl team. What is the approximate probability that all four seniors will be chosen at random? 0. 00020 0. 00476 0. 06667 0. 7142.

Answers

Answer:

0.06667

Explanation:

4/6 = 0.06667

How many moles are represented by 12. 33 g of carbon dioxide?.

Answers

Explanation:

formula:

mass - moles = mass given ÷ molar mass

R.M.M of CO2 = 32 + 6 = 38

Molar mass of CO 2 = 38g (recall that r.m.m = molar mass)

38g of CO2 will produce 1 mole

therefore 12.33g will produce:

12.33÷38g (recall formula above)

answer: 0.324 moles

Anthony would like to have his brokerage firm handle more of his financial needs because he has been pleased with the service provided when he bought and sold stocks and bonds. If he explores the services offered by such firms in more depth, he will find that.

Answers

There are firms that handles the financials for people. If he explores the services offered by such firms in more depth, he will find that:

The brokerage firms are becoming serious competitors for banks and other depository institutions by offering high-yield combination savings and checking accounts and money market accounts, as well as certain types of loans.

Brokerage firms often helps individuals or firms in providing some key financial services.   A full-service brokerage firm is known to be a brokerage firm that gives a range of financial services and also to gives room for one to buy and sell securities.

They help customers with financial planning services as well as consulting services and also provide trust services and wealth management services.

See full question below

Anthony would like to have his brokerage firm handle more of his financial needs because he has been pleased with the service provided when he bought and sold stocks and bonds. If he explores the services offered by such firms in more depth, he will find that:

federal laws prohibit brokerage firms from competing with banks, savings and loan associations, and credit unions.

although brokerage firms can offer some banking services, they typically are less efficient at providing them than banks, because they specialize in buying and selling securities.

brokerage firms are becoming serious competitors for banks and other depository institutions by offering high-yield combination savings and checking accounts and money market accounts, as well as certain types of loans.

although brokerage firms offer attractive banking services, federal law prohibits individual investors from holding both a checking account and a securities account with the same firm.

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Can one model demonstrate all outcomes of mitosis?(1 point).

Answers

Answer:

No, because some organisms are not diploid and have more than two sets of chromosomes

Explanation:

No, because some organisms are not diploid and have more than two sets of chromosomes.

What is mitosis?

A cell prepares for cell division by replicating its chromosomes, segregating them, and creating two identical nuclei during the mitotic phase. The cell's contents are often evenly divided into two daughter cells with identical genomes after mitosis.

A cell copies each chromosome during mitosis and distributes one copy to each of its two daughter cells. With regard to our example of an instruction manual, it is crucial that each person receive a duplicate of each page.

Mitosis follows the same pattern. Each chromosome must be delivered to each of our cells exactly once, without any errors, or the cells may have problems carrying out the genetic instructions.

Therefore, No, because some organisms are not diploid and have more than two sets of chromosomes.

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Who is wardy joubert? does he have a large one?

Answers

Answer:

WARDY JOUBERT ||| was known for his famous picture taken in 2010. The picture was taken  and had a very, very, very large third leg.

Explanation:

He died by  s triyng to feed his starving family. THe picture was meant to raise money for his family.

Wardy Joubert III August 30, 1971 – December 11, 2016, often known as Wood, was an American sermonized and football manager who became the subject of a 2012 internet meme.

What is Wardy Joubert?

Wardy Joubert III was born on the 30th of August 1971, and died on the 11th of December 2016. Wardy Joubert was a coach and deacon at San Francisco's St. Paul Missionary Baptist Church. Later in life, he had graphic images shot of him for the indulgent adult video site Pantheon Productions in order to make some additional money, resulting in the viral meme was developed.

Sleeping on a bed of nails has been associated with austere Hindu holy men who sleep on poles and walk on hot coals. He then served as a coach and deacon at San Francisco's St. Paul Tabernacle Baptist Church. To earn some additional income, he had images made of him for the indulgent video site Pantheon Productions, which is how the viral meme was born.

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What is the measure of arc BEC in circle D? 134° 150 209° 210°.

Answers

Answer:

134°

Explanation:

The measure of arc BEC in circle D is 134°. The correct option is 1.

What is circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called "centre".

The line of reflection symmetry is formed by every line that passes through the circle.

We've been given a circle image and asked to calculate the measure of arc BEC.

That angle is visible to us. ABC is an inscribed angle, and its measure is one-half the length of its subtended arc.

Here,

AC = 2 x m∠ABC

AC = 2 x 75°

AC = 150°

We can set an equation to find the measure of arc BEC because we know that the circumference of a 360 degree is:

Arc BEC + Arc AB + Arc AC = 360°

Arc BEC + 76° + 150° = 360°

Arc BEC + 226° = 360°

Arc BEC = 134°

Thus, the answer is 1.

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Your question seems incomplete, the probable complete question is:

What is the measure of arc BEC in circle D?

134° 150 209° 210°.

Circle H is inscribed with quadrilateral D E F G. Angle E is 123 degrees. The measure of arc D E is 73 degrees. What is the measure of arc EF in circle H? 41° 50° 114° 173°.

Answers

Measure of arc EF is 41 degrees

Answer: 41 degrees

Explanation:

I got it right

Which are characteristics of graphic novels? Choose three answers. Using speech bubbles using first-person perspective combining words and images dividing the story into frames telling only nonfiction stories.

Answers

The characteristics of graphic novels include:

Using speech bubbles.Combining words and images.Dividing the story into frames.

A graphic novel refers to a narrative work where the story is conveyed to the reader but using sequential art. It should be noted that graphic novels contain complete narratives.

Graphic novels combine both words and images. They can be fiction, fantasy, non-fiction, history, etc. In a graphic novel, the stories are divided into frames.

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Answer:

Speech Bubbles

Dividing the story into frames

Combining words and images

:)

Explanation:

What mass of glucose (C6H12O6) should be dissolved in 10. 0 kg of water to obtain a solution with a freezing point of -4. 2 ∘C?.

Answers

Answer:

4.1kg

Explanation:

I dont kwon but it was ok in the test

The mass of glucose dissolved in the solution is obtained as 4.734 Kg.

We know that;

ΔT = K m i

ΔT = Freezing point depression

K = freezing constant = 1.86 °C/m

m = molality of solution  

i = Van't Hoff factor = 1 (molecular solution)

To find the freezing point depression;

Freezing point depression = Freezing point of pure solvent - Freezing point of solution

Since freezing point of water = 0°C

Freezing point depression = 0°C - (-4. 2 ∘C) = 4. 2 ∘C

The molality of the solution is obtained as follows;

m = ΔT/K i

m = 4. 2 ∘C/ 1.86 °C/m × 1

m = 2.63 m

Molality = number of moles/mass of solvent in Kg

Number of moles = mass/molar mass =

Molar mass of glucose = 180 g/mol

Let the mass of solute be m

2.63 = m/180/10

2.63 = m/1800

m = 2.63 × 1800

m = 4734 g or 4.734 Kg

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An equilibrium mixture contains 0. 600 mol of each of the products (carbon dioxide and hydrogen gas) and 0. 200 mol of each of the reactants (carbon monoxide and water vapor) in a 1. 00 l container. Co(g)+h2o(g)↽−−⇀co2(g)+h2(g) how many moles of carbon dioxide would have to be added at constant temperature and volume to increase the amount of carbon monoxide to 0. 300 mol once equilibrium has been reestablished?.

Answers

Answer:

thanks po

Explanation:

yes po thanks salamat kamsamhida arigato

Which lines from the passage present the most likely reason that theodora’s attitude changes?.

Answers

The lines from the passage refers to a change in Theodora's attitude towards divorce law.

She made some amendments to the law in order to provide benefit to young girls who are suffering from masculine powers.

She was also against the girls trafficking and she saved young girls from being victim of human trafficking. She was the first ruler to recognize rights of woman.

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Dan bought x pounds of potatoes for $0. 85 per pound and y pounds of grapes for $1. 29 per pound. The total cost was less than $5. Which inequality represents his purchase? 1. 29x + 0. 85y < 5 1. 29x + 0. 85y > 5 0. 85x + 1. 29y > 5 0. 85x + 1. 29y < 5.

Answers

Answer:

0.85x + 1.29y < 5

Explanation:

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