A research scientist studied the effects of various treatments on the growth of poplar trees. He decided to treat a large sample of saplings with a fertilizer, continual irrigation, irrigation and fertilizer and a control group (non-continual irrigation and no fertilization). He placed one quarter of all saplings into each of the groups and then measured their mass differential after 3 weeks. Did the treatment have an effect on the growth of the trees
Answers
Answer:
hello your question is incomplete attached below is the screenshot of the missing part
answer : The treatment had an effect on the growth of the trees
Explanation:
H0 : No significant effect
Ha : At least one treatment has a significant effect
To confirm the above hypothesis ( conduct one way ANOVA )
From the one way Anova
( X represents each group; from control to Fertilizer and irrigation )
∑ X1^2 = 0.2338 , ∑ X2^2 = 1.8284, ∑X3^2 = 0.1982, ∑X4^2 = 11.8492
Also : ∑ N = 5 + 5 + 5 + 5 = 20 where N = number of trees in each group
also K represents number of groups i.e. = 4
Next calculate the sum of squares ( calculated using online tools )
i) Between sum of squares: value = 4.6824
ii) Within sum of squares : value = 4.3572
Next step : Calculate the degrees ( DF)
i) Between degrees of freedom
Dfb = k - 1 where K = 4 therefore Dfb = 3
ii) within degrees of freedom
Dfw = N - k , where N = 20 and K = 4 therefore Dfw = 16
Next : calculate mean sum of squares
i) Between mean sum of squares
= 4.6824 / 3 = 1.5608
ii) within mean sum of squares
= 4.3572 / 16 = 0.2723
Calculate the F-statistic value
[tex]F_{calculated }[/tex] = Between mean sum of squares / within mean sum of squares
= 1.5608 / 0.2723 = 5.73
determine the F critical value
Fcritical = [tex]F_{3,16,0.05}[/tex] = 3.2389 ( obtained from F table )
since [tex]F_{calculated } > F_{critical}[/tex] hence we can say The treatment had an effect on the growth of the trees i.e. Reject H0
Related Questions
Which of these are NOT products
made from the inedible fats from
beef?
A. Face creams and hand lotions
B. Fireworks and other explosives
C. Industrial oils and lubricants
D. Lamp shades and light bulbs
Answers
Answer:
I think it's B
Explanation:
........................
look at the picture also i dont know what this is so I just put biology
Answers
Answer:
millions of years
Explanation:
Takes a long time to form, so millions of years.
during photosynthesis producers convert carbon dioxide and other materials to
A. Lipids
B. Amino acids
C. Nuclei acids
D. Sugars
Answers
Answer:
d
Explanation:
During photosynthesis producers convert carbon dioxide and other materials to sugar. The correct option is D.
What are carbohydrates?A carbohydrate is an organic compound comprised up of carbon, hydrogen, and oxygen atoms, usually in a 2:1 hydrogen-oxygen atom ratio.
Bread, beans, milk, popcorn, as well as a host of other both healthy along with bad foods contain carbohydrates.
The critical necessity of carbohydrates in plants as vital sources of energy, carbon skeletons for organic molecules, and storage components is well renowned. They are created during photosynthesis.
When photosynthesis is finished, it releases oxygen and creates molecules of carbohydrates, most frequently glucose.
In plants, carbohydrates serve as a source of energy. Their metabolism and growth are their two primary processes.
Thus, the correct option is D.
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A mixture IS a pure substance
(True or false)
Answers
Answer:
no
Explanation:
Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. ... A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.
When does energy transfer from air to the land?
Answers
Answer:
Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface
Explanation:
I hope this helps answer your question
Which part of the respiratory system that branches off of the trachea carrying oxygen farther into the lungs?
-lobs
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Answers
Answer:
-bronchi
Explanation:
Hope this helps
Can any body help me with this no website
Answers
Scientists follow seismic waves to locate the epicenter.
Please select the best answer from the choices provided
T
F
Answers
Answer: This is true, scientists do follow seismic waves.
Answer:
True, or T.
is what it is
A wasp lays eggs on an orb-weaving spider to...
a) force it to protect the wasp and it's larva.
b) make it provide a home and meal for it's larva.
c) use it to carry it's larva Long distance.
d) make it create a cocoon for the larva.
Answers
Answer:make it provide a home and meal for it's larva.
Explanation:i did a little bit of research, and the spider provides food and shelter for the larva
which one is the lowest ,middle and highest between these magnification
10X
30X
40X
Answers
Answer:
10X is lowest
30X is middle
40X is highest
Fred has four daughters. What is the probability that his fifth child will be a boy?
a. 100% b. 50% c. 25% d. 20%
Answers
Him having four other daughters shouldn’t play a roll in his fifth child gender. There’s a 50/50 chance he’ll have a boy or girl
Lettuce, greenfly, ladybug, thrush, cat
Name the herbivore in the food chain.
Answers
Answer:
greenfly
Explanation:
Harry, a 42-year-old homeless gentleman visits the free-standing nursing clinic at the shelter. The nursing assistant wants to replace his socks and shoes. In the process of removing both, his great toe falls off of his right foot. How is this connected to diabetes? Explain the pathophysiology.
Answers
What is the meaning of pathophysiology
Diabetes can result in inadequate blood flow, nerve damage, and severe foot issues. One method to help prevent it is by controlling your blood sugar.
What is Diabetes?A collection of illnesses known as diabetes mellitus alter how the body requires blood sugar. The cells that comprise the tissues and muscles rely heavily on glucose as a source of energy.
Each form of diabetes has a different primary etiology. Yet, diabetes can result in an excess of blood sugar regardless of the type you have. Serious health issues can result from an excess of sugar in the blood. Diabetes can result in inadequate blood flow, nerve damage, and severe foot issues. Diabetes that is not controlled can result in amputations, mainly of the legs, foot, or toes. One method to help prevent it is by controlling your blood sugar.
Therefore, diabetes can result in inadequate blood flow, nerve damage, and severe foot issues.
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How are traits inherited by offsring?
Answers
a trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. If a gene pair contains a dominant allele, then the offspring will show this dominant trait.
step by step:
Answer:
Traits are passed to offspring by the offspring parents.
Explanation:
the genes that control a trait come in pairs, one from each parent. If a gene pair contains a dominant allele (a variation of genes that will produce phenotype,) than the offspring gains that trait from the dominant parent.
real ans only fast plzz
no wrong ok
Answers
Explanation:
A.Impulse Is The Answer.
Which gas has recently increased in the mesosphere, creating a rise in water vapor which has led to the formation of high-altitude clouds that are visible at night?
A) Ozone
B)Methane
C)Carbon Dioxide
D)Hydrogen
Answers
Answer:
I'm not 100% sure but I'm positive the answer was or is Methane, correct me if I'm wrong!
Methane levels in the mesosphere have lately risen, causing an increase in liquid water, that has resulted in the production of high-altitude storms visible at night.
So, option B) is correct.
Define Mesosphere.The mesosphere is the third layer of the atmosphere, located directly above the stratospheric and under the thermosphere. Temperature falls as altitude climbs in the mesosphere.
Methane levels in the mesosphere have lately risen, causing an increase in liquid water, that has resulted in the production of high-altitude storms visible at night.
Methane is a chemical molecule that has the formula [tex]CH_{4}[/tex].
So, option B) is correct.
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Help me out thank u !!!!!
Answers
Answer:
A
Explanation:
where on the map is Africa
Answers
Look in the picture i can't find the answer sorry :D hope it helps
True-breeding pea plants have
either spherical seeds or dented
seeds with spherical being the
dominant phenotype. A genetic
cross between two F1-hybrid pea
plants for spherical seeds will yield
what percent spherical-seeded
plants in the F2 generation?
a. 100%
b. 75%
c. 50%
d. 25%
Answers
Answer:
b. 75%
Explanation:
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cellulose
ethanol
insulin
water
Answers
Answer:
water
Explanation:
its so obvious...
Answer:
cellulose and water .I think are answer
PLS HELP WILL GIVE BRAINLIEST
1. The organism represented by letter F is an?
_________________
2: Which letters contain organisms that are autotrophic?
Answers
Answer:
F is a secondary consumer
A and B are autotrophic
Why are autumn temperatures in Texas usually warmer than autumn temperatures in Illinois?
Answers
Answer:
I'm texas it's more hotter which is because it's a southern state. illinois in more northern
HURRRRRRRRYYYYYYY!!!!!
Which statement BEST describes the relationship between photosynthesis and cellular respiration?
A
Both processes release energy in the form of heat.
B
Both processes use energy to form molecules of glucose.
C
The products of one process are the reactants in the other process.
D
The products of one process are the same products in the other process.
Answers
Answer:
b
Explanation:
I DONT UNDERSTAND PLEASE HELP ME OUT
Answers
8. How are most seeds dispersed to a barren landscape?
Answers
Answer:
Some seeds are transported by the wind and are shaped to float, glide or spin through the air. ... Some seed pods are designed to explode and throw the seeds a good distance from the parent plant. Many plants also use animals to carry their seeds.
Explanation:
Which of the following most likely has the greatest
thermal energy?
A. water going over a waterfall
B. water in a lake
C. water from a hot water tap
O D. water vapor
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What is the difference between
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Answer:
Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.
Explanation:
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( put this in a paragraph please)
Also describe how fungi are helpful and harmful to humans and other organisms. ( put this in a paragraph also please)
Answers
Answer:
Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live. For example, medicines made from protists are used in treatment of high blood pressure, digestion problems, ulcers, and arthritis. Fungi are very important ecologically, because they are one of the most important decomposers in most ecosystems. They help to break down plant fibers such as dead leaves and wood and allow the nutrients to be released into the soil. Fungi are useful to humans because they have economic value.
Hope this helps
Explanation:
Consider the sphere. A sphere. A is the great circle, B is the diameter, c is the radius, and d is the center. Identify the parts of a sphere. a is the b is the c is the d is the
Answers
Answer:
a is the great circle
b is the diameter
c is the radius
d is the center
Explanation:
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Answer:
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