Answer:
Explanation:
The standard deviation is preferable to the range as a measure of variation because the standard deviation takes into account all of the observations, whereas the range considers only the largest and smallest ones.
To compare the average amount of time that canadians and americans spend commuting, a researcher collects a sample of canadians and americans. The canadians spend an average of hours a week commuting, with a standard deviation hours. The mean and standard deviation for the sample of americans is hours and hours, respectively. The standard error of the difference of sample means is:.
The standard error of the difference of sample means is 0.444
From the complete question, we have the following parameters
Canadians
Sample size = 50Mean = 4.6Standard deviation = 2.9Americans
Sample size = 60Mean = 5.2Standard deviation = 1.3The standard error of a sample is the quotient of the standard deviation and the square root of the sample size.
This is represented as:
[tex]SE = \frac{\sigma}{\sqrt n}[/tex]
The standard error of the Canadian sample is:
[tex]SE_1 = \frac{2.9}{\sqrt{50}}[/tex]
So, we have:
[tex]SE_1 = 0.41[/tex]
The standard error of the American sample is:
[tex]SE_2 = \frac{1.3}{\sqrt{60}}[/tex]
So, we have:
[tex]SE_2 = 0.17[/tex]
The standard error of the difference of sample means is then calculated as:
[tex]SE= \sqrt{SE_1^2 + SE_2^2}[/tex]
This gives
[tex]SE= \sqrt{0.41^2 + 0.17^2}[/tex]
[tex]SE= \sqrt{0.197}[/tex]
Take square roots
[tex]SE= 0.444[/tex]
Hence, the standard error of the difference of sample means is 0.444
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Which event organized peace between germany and the allied forces at the end of world war i?.
Answer:
Treaty of Versailles
Explanation:
it was signed in June 1919
it was signed by Germany France UK and some other countries as well
Which of the following is true of analogies in supporting problem solving?.
The answer option which is considered to be true of analogies in supporting problem solving is: Relevant analogies usually help people solve problems, and people do spontaneously think of relevant analogies.
An analogy can be defined as a process through which a situation is compared with another for the purpose of clarity or explanation. Thus, an analogy can be used to explain and illustrate the relationship that exist between two or more things.
In the problem-solving process, an analogy uses relevant or similar situations to proffer a solution to a problem since there exist a relationship between the two circumstances.
In conclusion, relevant analogies usually help people in proffering solution to problems.
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The length of segment xy is 9 cm. Which statements regarding triangle xyz are correct? select two options. Yz = 9 cm xz = 9 cm xz = 9 startroot 2 endroot cm xz = 2(xy) yz is the longest segment in △xyz.
Based on the properties of an isosceles triangles and the Pythagorean Theorem, the statements that will be true regarding ΔXYZ are:
A. YZ = 9 cm
C. XZ = 9√2cm
What is an Isosceles Triangle?An isosceles triangle has two equal base angles of the same angle measure.The sides opposite to the two equal base angle of an isosceles triangle are congruent (equal in length).A right isosceles triangle can be solved using the Pythagorean Theorem given as: c² = a² + b², where a and b are the two smaller equal lengths, and c is the hypotenuse or longest side.Thus, based on the properties of an isosceles triangles and the Pythagorean Theorem, the statements that will be true regarding ΔXYZ are:
A. YZ = 9 cm
C. XZ = 9√2cm
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Answer:
A. and C. are correct
Explanation:
Got 100% on the quiz!
What is the solution to the system? (–3, –2) (4, –3) (4, –2) (4, –1).
Answer:
b. 4,-3
Explanation:
i just did it
which of the following suggestions would be most beneficial for a reader in order to gain a better understanding of the information presented in this excerpt? skim encyclopedias to learn star names and locations. review scientific journals explaining the various types of clouds. read a variety of sources about the formation of black holes. search web pages focused on personal encounters with black holes.
Answer:
C. Read a variety of sources about the formation of black holes
hope this helps!
Answer:
C. Read a variety of sources about the formation of black holes
Explanation:
Just did on Edge 22
What is the most appropriate unit for the length of a pencil.
Answer:
inches
Explanation:
because centimeters is to small and inches is easier to count
Which of the following is a type of internal hard drive used in laptop computers?.
SSD's, SSHDS and magnetic disks
the internal hard drives that are used in laptops
Eight less than four times a number is less than 56.
Answer:
depending on the number I think I could be wrong not 100%
On a coordinate plane titled area of maya's poster, a curved line with a minimum value of (1, negative 1) crosses the x-axis at (0, 0) and (2, 0), and the y-axis at (0, 0). The width of maya’s poster is 2 inches shorter than the length. The graph models the possible area (y) of maya’s poster determined by its length (x). Which value of x makes sense for the length of maya’s poster? x < 0 x < 2 x > 0 x > 2.
Answer:
0.0*90+/(2_4
.....................................
Answer:
its D for anybody that still needs help
Explanation:
Which of the below mentioned operating system is not a proprietary os.
The operating systems that is not proprietary among the softwares is Linus
Proprietary software can be regarded as non-free software whereby the software's publisher decided to reserves some rights from licenses so others cannot modify or use it.
Examples of Proprietary software are;
MS-DOS Windows 2000Therefore,the operating systems that is not proprietary is Linus.
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Accenture has signed a multi year agreement to help a mobile telecom provider.
The activity that Accenture should execute first to provide the client with an optimal cloud solution/landscape is;
Negotiate pricing with the client's preferred cloud provider
Complete question is;
Accenture has signed a multi-year agreement to help a mobile telecom provider migrate its applications to the Cloud over a a period of several years, as it seeks to implement a learner operating model. Which activity should accenture execute first to provide the client with an optimal cloud solution/landscape?
Since the company accenture has signed an agreement to help a telecoms provider to migrate all their applications to cloud platform over a couple of years, the first thing they must do is to negotiate the cost of migration with the preferred cloud services provider of the client.
This is because the agreement has already been signed and the next thing is modalities for execution of the migration and they need to first know the negotiate a price so that they will make their profit since it is a business at the end of the day.
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Which is not a structure of comparative anatomy of organisms?.
Answer: these are the three that are structure -Homologous, Analogous and Vestigial Structures. so the answer is d camouflage
Explanation:
Where did factory workers come from as new factories were built in europe brainly.
Answer:
Factory workers came from Africa as new factories were built in Europe.
Explanation:
In the nineteenth century, European nations began seizing lands in the Middle East to take control of oil reserves.
An intravenous (iv) solution contains 100. 5 ml water and 5. 10 g glucose with a known density of 1. 56 g/cm3. If the molar mass of glucose is 180 g/mol, what is the molarity of the solution?.
Write the factors of polynomial 4x^2+y^2+4xy+8x+4y+4.
Answer:
ur answer is in the pic
..................
magnesium bromide is an ionic compound with the chemical formula mgbr₂.what does the "2" indicates?
Magnesium bromide is the inorganic compound with the formula Mgbr₂, where 2 indicates that there are 2 bromide ions for every magnesium.
Magnesium bromide (MgBr2) is an ionic compound of magnesium and bromine, that is, it is the compound that is formed when an atom with low electronic affinity gives up electrons, becoming an anion, while another atom gains those electrons.
It exists in different forms depending on the degree of hydration, the two main forms are anhydrous and hexahydrate.Therefore, we can conclude that magnesium bromide is a compound where for each magnesium ion there are 2 bromide ions.
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Frank has an auto policy with a coverage limit of $30,000 and a deductible of $1,000. He gets into an accident and the damages to his car total $6,200. Fortunately, he has collision coverage. How much will frank need to pay out-of-pocket?.
The amount that Frank will need to pay out-of-pocket is $1,000. A deductible refers to the amount to pay on a claim before the insurance covers the rest.
A deductible can be defined as the amount to pay “out of pocket” on a claim before the insurance covers the remaining part.
In this case, the auto insurance deductible is equal to $1,000, thereby Frank should pay this amount of money.
There are different categories of auto insurance deductibles (either low deductibles or high deductibles).
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Pure water boils at 100°c. What happens to the water particles when water boils?.
Answer:
When boiling occurs, the more energetic molecules change to a gas, spread out, and form bubbles. These rise to the surface and enter the atmosphere. ... Therefore the temperature of the liquid remains constant during boiling. For example, water will remain at 100ºC (at a pressure of 1 atm or 101.3 kPa) while boiling.
Explanation:
not too sure tho
Answer:
When boiling occurs, the more energetic molecules change to a gas, spread out, and form bubbles.
Explanation:
they gain energy and move further apart
Which system of equations shows a solution of (–3. 5, 4)?.
Answer:
Quadratic equation
Explanation:
For example
[tex] {x} ^{2} + x - 2 = 0[/tex]
[tex]x^{2} + 2x - 1x - 2 = 0[/tex]
[tex]x(x + 2) - 1( x + 2)[/tex]
[tex](x - 1)(x + 2)[/tex]
[tex]x = 1.x = - 2[/tex]
According to the big five personality trait theory brainly.
Answer:
The big five theory traits the theory describes are openness, consciousness, extroversion, Agreeableness and Neuroticism
In general, an organism will be more likely to develop phobias of __________.
In general, an organism will be more likely to develop phobias of dangers faced during natural circumstances.
Phobia is an unjustified or pathological fear of situations or circumstances that are not dangerous and that most people do not find bothersome. Fear is a natural reaction or an adaptive experience to situations or objects that imply a real danger.When this fear occurs before natural circumstances that do not pose a real danger, then we find this fear is no longer adaptive is what we call a phobia.
Therefore, we can conclude that an organism will be more likely to develop phobias of dangers faced during natural circumstances.
A food worker has an earache what is the required to do.
Answer: If you are experiencing vomiting, diarrhea, jaundice, or a fever accompanied by a sore throat, the FDA requires that you report your symptoms to your manager.
what viewpoint is conveyed by sophocles through the following lines spoken by antigone to creon regarding his decree that she disobeyed? creon. didst thou, then, dare to disobey these laws? antig. yes, for it was not zeus who gave them forth, nor justice, dwelling with the gods below, who traced these laws for all the sons of men; nor did i deem thy edicts strong enough, coming from mortal man, to set at naught the unwritten laws of god that know not change. the government is always the highest law of the land. religious law is above or greater than man's law. the laws of the government are sometimes correct and sometimes incorrect. one must be willing to accept punishment for breaking laws.
There are different kinds of laws. The viewpoint that is conveyed by Sophocles through the following lines spoken by Antigone to Creon regarding his decree that she disobeyed is that religious law is above or greater than man's law.
In the text, we can see Creon emphasizes on the unwritten laws of gods that know not change. She is trying too acknowledge the fact that the laws of the gods are greater than man's law and cannot be altered for any thing at all.The Antigone is known too be a tragedy play that was written by the ancient Greek playwright called Sophocles. It was known to be written around 442 BCE.
The play centers around Antigone’s burial of her brother Polynices (Polyneices), after defying the laws of Creon and the state, and the outcomes of her act of civil disobedience.
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A hotel manager recorded the percentage of rooms that were occupied each day over a period of 25 days. The data she collected is shown on the graph. The manager recognizes that the data approximates a transformation of the parent sine function,. Which value is closest to the amplitude of the transformed function?.
Answer:
15
Explanation:
plato users!
Blank blank and blank are examples of nonverbal communication.
Answer:
Maintaining eye contact, Using positive tone voice, and standing with a good posture.
Explanation:
Hope that helps.
Libro emma y las otras señoras del narco pdf descargar gratis.
El libro "Emma y las otras señoras del narco" tiene como temática el mundo del narcotráfico y las mujeres que rodean a este mundo del crimen organizado.
La autora del libro es la periodista mexicana Anabel Hernández, quien se dedica al periodismo de investigación, especialmente a la investigación del narcotráfico en México.
Lee más información sobre el narcotráfico en México en el siguiente link https://brainly.com/question/365499?referrer=searchResults
Which of the following must exist in a population before natural selection can act upon that population?.
Answer:
) genetic variation among individuals
When hydrogen reacts with calcium metal what are the oxidation number.
Answer:
the oxidation number is +2
Read the excerpt from "justin lebo. " on the way home, justin was silent. His mother assumed he was lost in a feeling of satisfaction. But he was thinking about what would happen once those bikes got wheeled inside and everyone saw them. How would all those kids decide who got the bikes? two bikes could cause more trouble than they would solve. What conflict is introduced in this excerpt?.
The conflict which is introduced in the given excerpt is:
An internal conflict because Justin is undecided about how the other kids are going to decide who got the bikes.Based on the given excerpt, we can see that the narrator talks about the scene where Justin was going home with some bikes and while his mother misinterpreted his silence for satisfaction, he was actually lost in thought because of an internal conflict.
With this in mind, we can see that the internal conflict which Justin had was that he did not know what would happen to the bikes once they are wheeled into the garage and the kids decide who got the bikes.
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