1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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

You might be interested in
Our traits are determined by our genes and these traits are inherited. where do our genes come from?
GalinKa [24]
Chromosomes are Inherited From Your Parents. One chromosome from each of your 23 pairs came from each of your parents. The two chromosomes of a pair (except for the sex chromosomes) contain the same genes, but the genes have small differences. Things like SNPs make each copy of a gene uniquely Mom's or Dad's.
5 0
3 years ago
Read 2 more answers
Describe the difference between rapid slow stable and negative population growth
Dovator [93]
rapid slow means walking
5 0
2 years ago
10 Direction: Directional Lock* U = UP, D = DOWN, L = LEFT, R = RIGHT (ALL CAPS, NO SPACES )
Tomtit [17]

Answer:

yes its correct, just add LEFT:Y

Explanation:

The different directions.

4 0
3 years ago
What are two functions of cell surface markers?
svetlana [45]
There are 2 functions for cell surface markers. The first is to recognize the outside cell. The second is to allow the cell to bind to substances outside the cell. Cell surface markers are proteins expressed on the surface of cells that often conveniently serve as markers of specific cell types. There are different types of cell surface markers. These markers are vital for the human body to function. These markers also vitally affect the functions of other biological systems of other organisms and creatures such as animals.
4 0
3 years ago
The suprachiasmatic nucleus influences the release of melatonin by its effect on the ________________.
anyanavicka [17]

Answer:

Pineal gland

Explanation:

The suprachiasmatic nucleus is the paired nucleus made of about 1000 neurons each in the hypothalamus. The suprachiasmatic nucleus is involved in maintaining the endogenous clock or the internal clock.

The suprachiasmatic nucleus controls the circadian rhythm by controlling the amount of melatonin. The melatonin is produced by the pineal gland from the serotonin and tryptophan precursors.  The hypothalamus thus controls the amount of the melatonin by regulating the pineal gland.

Thus, Pineal gland is the correct answer.

5 0
3 years ago
Other questions:
  • What two alleles do males have for gender?
    8·1 answer
  • The organelles responsible for protein synthesis are known as __________ and the organelles that assist with the breakdown of pr
    11·1 answer
  • Problem: What type of energy does a toy car have when it is pushed by a child? A.heat energy B.light energy C.mechanical energy
    11·2 answers
  • Nitrogen is made available in a useful form for animals in the A. fertilizers they absorb. B. plants they eat. C. air they breat
    5·1 answer
  • When a nurse becomes too emotionally attached to her​ patients, it becomes difficult for her to do her job effectively?
    7·1 answer
  • Enter the molecular formula for butane, C4H10. Express your answer as a chemical formula.
    13·1 answer
  • NOT 100% SURE SO WANT FEEDBACK!!!WILL GIVE BRAINLIEST, RATE AND VOTE!!!AT LEAST TAKE A LOOK!!!!!!!!
    9·1 answer
  • Chymotrypsin is a digestive enzyme that breaks down proteins in the small intestine. A student runs a computer simulation of chy
    12·1 answer
  • 1
    7·1 answer
  • Which procedure is an example of classifying observed data?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!