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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

#SPJ4

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Help pls- <br><br> compare and contrast evaporation and boiling
DENIUS [597]
So the simple answer would be evaporation is slow and can only occur through the surface of a liquid and it cools it down, while boiling is fast and produces bubbles ( evaporation does not ) and it occurs throughout the liquid and doesn’t cool it down. A similarity between the two would be water vapor is given off
Both the processes of evaporation and boiling result in a change from liquid to vapor.

hope this is what u we’re looking for and this helps !! :)
4 0
3 years ago
Which of the following describes the nervous system integrative function? A. responds to stimuli by gland secretion or muscle co
Verdich [7]

Answer:

B. analyzes sensory information, stores information, makes decisions

Explanation:

The receptors sense the changes or stimuli. The sensory neurons of the nervous system deliver this sensory information to the processing center, that is, to the central nervous system. The central nervous system serves to store the information and analyze it to determine the best suitable response. The ability of the nervous system to the store and process of sensory information to make the effector organs to exhibit the best response represents its integrative function.

5 0
3 years ago
the large influx of mononuclear cells into the lungs plays a role in the formation of infection sites called
melomori [17]

The development of structured structures known as tubercles is tuberculosis.

<h3>Which four forms of infections are there?</h3>

Infections frequently occur. We've probably all experienced at atleast one at some point, from COVID-19 to ear infections and also the flu. Sepsis can be brought on by bacterial, fungal, viral, or parasitic illnesses.

<h3>What brings about an infection?</h3>

Whenever bacteria taken into the body, multiply, & trigger a response in the body, an illness results. An infect needs to happen in three different ways: Source: Ecologies of infectious (germ) pathogens   A individual who's really susceptible but who has a point of entry for germs.

To know more about Infection visit:

brainly.com/question/9260382

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4 0
1 year ago
A nurse informs a woman that there is nothing more that can be done medically for her premature infant who is expected to die. t
allsm [11]
The answer to this question would be: Inhibited grief.

Inhibited grief happens when someone <span>does not display any sign of mourning. This kind of grief can cause a health problem like a stomach ache or a headache. It is important to resolve the grief when losing someone important so that grief doesn't come back as an unexplained medical problem.</span>
8 0
3 years ago
Compare and contrast correlational and experimental research by designing two types of studies that aim to answer the same quest
3241004551 [841]

Answer:

Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between variables. The correlation coefficient is usually represented by the letter r.

Explanation:

6 0
3 years ago
Read 2 more answers
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