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tia_tia [17]
2 years ago
13

What conditions are necessary in order to use a t​-test to test the differences between two population​ means?.

Biology
1 answer:
Sliva [168]2 years ago
7 0

The two samples must be independent and each must be drawn at random from any population. The two samples must be independent and each must be drawn at random from a healthy population.

At the very least, nominal scale data are required. There must be normal populations. There must be knowledge of the two population standard deviations. The samples depend on one another.

<u>What is nominal scale?</u>

A nominal scale is a measurement scale that is used to categorize events or things into distinct groups. This type of scale only needs one-of-a-kind identifiers to mark each separate category instead of requiring the usage of numerical values or categories ranked by class.

Learn more about the Silent Spring with the help of the given link:

brainly.com/question/13267344

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Beta-blockers ________. select one:
makkiz [27]

Beta-blockers decrease heart rate and blood pressure. Answer:D

It is a drug that might be used specifically to reduce heart rate in cardiac patients.  The drug is also referred to as beta-adrenoceptor blocking agents and are prescription-only medicines (POMS).


3 0
3 years ago
Three main steps in the process of DNA replication. Name the enzymes that go with each step
Llana [10]

Answer:

The three mains in the process of DNA replication are 1 initiation 2 elongation 3 termination.

Explanation:

Enzymes those function during initiation

1 Helicase.

2 single strand binding protein.

3 Topoisomerase.

Enzymes those function during elongation

a DNA polymerase alpha

b  DNA polymerase delta

c  DNA polymerase epsilon

Enzymes those function during termination

1 Replication protein A

2 Replication factor C

6 0
3 years ago
In two or three well-developed paragraphs, explain how pollution can come from both natural sources and from human activities. P
spayn [35]

Pollution can come from both natural sources and human activities depending on the type of pollutant.

<h3>What is pollution?</h3>

It is the release of substances into the environment to the extent that the well-being of plants, animals, and humans starts getting affected.

Substances that are released into the environment to the extent that they start affecting the organisms in the environment negatively are known as pollutants.

Pollutants can come from natural sources or as a result of human activities.

For example pollutants such as oxides of sulfur, methane, carbon dioxide, etc. can come from natural processes such as volcanic eruptions, activities of microbes, etc.

Pollutants such as oxides of carbon and sulfur can also be generated as a result of human activities such as the burning of coal, technological inventions, etc.

More on pollution can be found here: brainly.com/question/23857736

#SPJ1

8 0
2 years ago
In multiple fission, a cell is produced that has multiple ________. daughter cells spores nuclei parent cells
trapecia [35]

Answer:

Nuclei

Explanation:

Nuclei

7 0
2 years ago
The atomic number of an element is the same as the number of _________ in each atom.
muminat
Neutrons plus protons
4 0
3 years ago
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