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VikaD [51]
3 years ago
12

Which is most likely an external cost of constructing a new office building? lumber and drywall air pollution permits and inspec

tions landscaping workers
Advanced Placement (AP)
2 answers:
Klio2033 [76]3 years ago
6 0

Answer:

The cost of building an external building can vary between 30000 euros (building construction project) and 2500000 euros (5-storey building). These values are approximate.

Explanation:

Three of the trends in the construction of a building are the following:

-Prefabricated buildings. Its main advantages are the reduction in construction deadlines, as it develops faster. There are prefabricated buildings of concrete, wood and other materials. They tend to have budgets up to 30% lower.

-Sustainable construction buildings. They have special consideration for the low consumption of energy resources. They usually use ecological materials (wood or other recyclable materials), and generate a low environmental impact. They are the safest to live in them, whether apartments or houses of any kind.

-Buildings with steel or concrete structures. Buildings with metal structures have the benefit of being really resistant, in addition to presenting great homogeneity. They can be previously built in an industrial building, which facilitates and increases the speed of the work. Steel requires less foundation work, being a lightweight material.

Vesna [10]3 years ago
3 0

Air pollution permits, for sure, you don't have to pay for air polution to drive a truck, so why when you build and office.

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so really, the word religion is a biblical word, which means the Bible(and God) has the right to define it! Religion is trying to earn/work your way towards God. Which is extremely difficult, and for this task you would need something to keep you on track. but lets be honest, your not perfect. So God did everything for you, and he offers everything freely only because he loves us, and your greatest purpose in found in him. whatever its a prophet, r whatever is good, remember all of this comes from God!
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A teacher requires an oral presentation as part of their final grade. A. Is institutional discrimination present? B. Against wha
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Answer:

C

Explanation:

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Is this study an experiment or an observational study? Explain your answer.
seraphim [82]

Answer:

Explanation:

Hello!

Full text in the attachment.

a)

Little reminder:

An observational study is one where the investigator has no control or intervenes on it. He just defines the variable of interest and merely collects and documents the information. These types of studies are usually made as precursors to a more formal experimental study, to have an idea of what's to be expected from the population.

An experimental study or experiment is one where the investigator intervenes by defining the variable of interest and artificially manipulates the study factor. It is also one of its characteristics the randomization of cases or subjects in groups (two or more, depending on what is the hypothesis of study).

This is an example of a double-blind experiment, in which neither the experimental subjects (volunteers students) nor the researcher (physician). Aside from the fact that the subjects were controlled to make sure they followed the assigned treatment, no other factors were controlled (sleeping habits, eating habits, previous medical conditions)

Still, there is enough intervention to classify it as an experimental study.

b)

You have calculated the probability of randomly selecting a student that contracted the flu. There is no specification about the group the student belongs, you have to calculate the probability of the total of students that contracted the flu.

Let F represent the event that "the student contracted the flu", you can calculate the probability as:

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c)

In this case, you have to calculate the probability that the student contracted the flu, given that he was assigned to the "Vitamin C" group.

This is a conditional probability since you already know that the student was from the "Vitamin C" group (Symbolized V), instead of calculating the probability using the size of the total of volunteers, you'll use the total of students assigned to that group:

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d)

Two events are independent when the occurrence of one of them doesn't modify the probability of occurrence of the other one. In this case, we have the events F: "The student contracted the Flu" and V: "The student took vitamin C" if F and V are independent the probability of F should stay the same even whether or not he has taken vitamin C:

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But as calculated in items b. and c. these probabilities are different, meaning that the events are not independent.

e)

The claim of the health expert is that "Vitamin C reduces the occurrence of the flu in the population of volunteer students, i.e. the number of students that contracted the flu given that they took vitamin C will be less than the number of students that contracted the flu given that the took the placebo.

The parameters of the study will be the population proportions of students with the flu that took vitamin C, p₁, and the population proportion of students with the flu that took the placebo, p₂.

H₀: p₁ ≥ p₂

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f)

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Answer:

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Explanation:

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