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The standard error of the difference of sample means is 0.444

From the complete question, we have the following parameters

Canadians

Americans

The 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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Answer:

- Too broad

-effective

- Too narrow

- effective

Explanation:

Give me Brainliest plz

1. Too broad: what will the economy be like in the future?

2. Effective: how can virtual reality (VR) be used in health care?

3. Too narrow: how many gallons of water will we use in 2025?

4. Effective: what are the best strategies for increasing food production in the future?

A research question can be defined as a specific inquiry (question) that a research work seeks to provide an answer or response to, especially by using scientific methods such as the following:

According to their nature, a research question is broadly classified as follows:

1. Too broad: what will the economy be like in the future?

2. Effective: how can virtual reality (VR) be used in health care?

3. Too narrow: how many gallons of water will we use in 2025?

4. Effective: what are the best strategies for increasing food production in the future?

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Answer:

Alcoholics are able to limit the amount they drink.

Explanation:

When readers make a(n) inference, they are drawing a conclusion based on evidence. Thus the correct option is 2.

Any topic's conclusion gives information about the subject, including the major point, which aids the reader in evaluating the topic's advantages and disadvantages and formulating a conclusion as a result.

Objects that convey accurate information based on real events are referred to as evidence or proof. This factual information aids in determining whether or not the events actually occurred. It aids in establishing the reliability of the sources.

Inference in a piece of literature is the process of drawing a conclusion about a given topic using the facts and evidence that are specific to that work of literature.

Therefore, option 2 is appropriate.

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The complete question is probably

When readers make a(n) ____ , they are drawing a conclusion based on evidence.

1.analysis

2.inference

3.prediction

4.strategy

Considering the situation described above, the strongest correlation data is the "student a: r = –0. 87."

The correlation of variable is defined to be the strong correlation when the r-value is closer to +1 or -1.

Given that from the available options the r-value that is closer to +1 or -1 is that of student A which has -0.87, therefore, it is concluded that the Student A data had the strongest correlation.

Hence, in this case, it is concluded that the correct answer is option A. "Student A."

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There are different ways to connect an event. How does this event best connect to the theme "secrets isolate people is that Dr. Jekyll is trapped at home because he is afraid the truth will be discovered.

Isolation is known to be shown in Jekyll and Hyde?. it was shown in Henry Jekyll's case, when he wishes to be alone and be secluded from the world in general.

The monster also wishes or want to be one with the world but is forced into isolation as a result of its ugliness and disfigurements. The truth when discovered can have a lot of consequences.

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Answer:

A) Dr. Jekyll is trapped at home because he is afraid the truth will be discovered

Explanation:

Edge 2022

Answer:

thire is no grup 13 in modern periodic table

Answer: The correct answer is D. Ask a question that can be answered by making observations.

Explanation:

Basically, in order to develop a testable hypothesis, scientists must adhere to the guidelines of the scientific method.

The scientific method is usually understood to be a so-called hypothetical-deductive method, the core of which is to make hypotheses based on observations or measurements, to make predictions based on them and to check the validity of predictions by repeated experiments. More generally, the scientific method is a general way of obtaining solid knowledge, using many means of proof, both empirical and theoretical, to achieve certainty. The scientific method is a widely recognized tool in the scientific community for seeking objectivity, reliability and transparency in research.

The sentence We should comb our hair is equivalent to the sentence Nosotros debemos peinar nuestro cabello.

In this question we should translate a sentence in English into Spanish, in this case a literal manner based on Spanish grammar and conserving the grammatical construction of the English original is used for a better understanding of the reader.

We know that the grammatical structure is described below:

Pronoun + auxiliary verb + verb + complement

Based on these rules, we have the following translation:

Nosotros debemos peinar nuestro cabello.

In a nutshell, the sentence We should comb our hair is equivalent to the sentence Nosotros debemos peinar nuestro cabello.

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Answer:

Debemos Peirnarnos

D on Edge

Explanation:

Answer:

Maintaining eye contact, Using positive tone voice, and standing with a good posture.

Explanation:

Hope that helps.

Answer:

1.Reactive

2.Halogens

3.Nonmetals

Explanation:

(WRITTEN IN SENTENCE)

The noble gases are the least reactive of any elements on the periodic table. The halogens form acidic compounds with hydrogen. The halogens are the most reactive among all the non-metals .

Reactive, Halogens, and Nonmetals make the statement true.

All identified chemical elements are arranged in rows (referred to as periods) and columns (referred to as groups) in the periodic table of chemical elements, also known as the periodic table, in ascending order of atomic number.

According to Los Alamos National Laboratory, the periodic table's horizontal rows are known as periods, and each period number represents the number of orbitals for the elements in that row.

Atoms have protons and neutrons as their nucleus. Outside of that are their electrons, which are grouped in orbitals; an atomic orbital is a mathematical concept that refers to the position of an electron and its wave-like activity.

According to the Royal Society of Chemistry, Russian chemist and inventor Dmitri Mendeleev are regarded as the "father" of the periodic table (opens in new tab). Mendeleev was a well-liked instructor in the 1860s at a Russian institution in St. Petersburg.

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Answer:

The answer is A: hasty generalization

Explanation:

Got 100% on the quiz

Answer:

A

Explanation:

The Prisoner choose the bread and not the key because he prioritized the

Cat for escaping.

This was contained in Act 5 of Hamlet which was written by William

Shakespeare. Hamlet saw himself as a righteous hero and didn't want to

do the wrong thing.

He picked the bread to fill his stomach and left the key so the cat because

it needed it more in order to escape and avenge his father's death.

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Answer:

In “Civil Disobedience” Thoreau not only calls for resistance to immoral and unjust government actions, he also criticizes the foundation of representatives democracy — majority rule, voting, and representation

Explanation:

hope it helps

Answer:

B: The Mexican-American War

Explanation:

A good practice for protecting computing devices is to: ensure your antivirus and other software are kept up-to-date.

Computing can be defined as a process that typically involves the use of computer hardware and software to manage, process and transmit data in order to successfully complete a goal-oriented task.

In Computer science, some examples of a computing device include the following:

Generally, a good practice for protecting computing devices is to ensure your antivirus and other software are kept up-to-date. Thus, you shouldn't use an outdated software application on your computing devices.

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The most likely consequence of open pit mining on plant life is a dramatic reduction in the variety of plant species. Open pit mining involves removing large amounts of rock and soil to extract valuable minerals. This process destroys the natural habitat of plants and disrupts the ecological balance.The correct answer is option A.

Here is a step-by-step explanation:
1. Open pit mining involves digging a large hole in the ground to extract minerals such as coal, gold, or copper. This process often requires the removal of trees, vegetation, and topsoil from the area.
2. The removal of vegetation and topsoil disrupts the natural ecosystem, as plants play a vital role in supporting other organisms. They provide food, shelter, and oxygen for animals, insects, and microorganisms.
3. The destruction of plants in the area leads to a loss of habitat for various plant species. Many plants are unable to survive or adapt to the harsh conditions created by open pit mining, such as exposure to sunlight, wind, and erosion.
4. The disturbed soil and exposed rock surfaces are often unable to support the growth of diverse plant species. This results in a reduction in the variety of plants that can grow in the area.
5. Additionally, the mining process may introduce pollutants and contaminants into the soil, water, and air, further damaging plant life.
In summary, open pit mining has a significant negative impact on plant life, resulting in a dramatic reduction in the variety of plant species. The destruction of habitat, disturbance of soil and rock surfaces, and pollution are all contributing factors to this consequence.

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Answer:

cylinder heads

Explanation:

In an internal combustion engine, the cylinder head sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket.

Answer:

(x^2 * sq rt x)/3

Explanation:

first, simplify the 2x^5/18

you get x^5/9

square rooting 9 gives you 3

square rooting x^5 gives you x^2 * sqrt x

just put 3 in the denominator and x^2 * sq rt x in the numerator

ANSWER: (x^2 * sq rt x)/3

Answer:

can u please put a pic of the Passage so I can answer?

Sulfur valence electrons have an effective nuclear charge of +6.

Effective nuclear charge is defined as the true positive nuclear charge that an electron in a multi-electron atom experiences. Electrons and protons are the two elements that cause the effective nuclear charge to rise. Zeff = Z - S is the actual nuclear charge.

A sulfur second row electron's effective nuclear charge is 14. Since sulfur contains 16 protons, or 16 atomic numbers, we know that there are 2 electrons in its first shell or orbit, which due to its rapid speed creates a shielding effect.

Thus, sulfur valence electrons have an effective nuclear charge of +6.

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Answer:

mitosis. ,. meosis ,. formation of gamettes

Answer:

i think B

Explanation:

Answer:

They are all a part of the water cycle.

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;

Therefore,the operating systems that is not proprietary is Linus.

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