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
Rina8888 [55]
3 years ago
15

At a high school, students can choose to enter through one of three doors. Custodians noticed that door #3 was always getting br

oken and suggested that more students use that door because it has a hands-free opener. Science minded students counted the number of students entering each door to see if the custodians were right.
The number of students to enter each door was counted; the data is summarized in the table below:

Choose the best statement:
A. The null hypothesis should be accepted.
B. The difference between the number of students who use each door cannot be explained by chance alone.
C. The difference between the number of students who use each door is due to chance alone.
D. There is no statistical difference between the number of students who use each door.

NOTE: I know that the answer is NOT A. The null hypothesis should be accepted.

Biology
1 answer:
Kruka [31]3 years ago
3 0

Answer:

It's either B or C

not sure tho

You might be interested in
After suffering a brain injury by falling from a ladder, Zack's wife continues to tell the doctor that his personality has chang
Ivenika [448]

Answer:

frontal lobe

Explanation:

  • The cerebral cortex of the brain has four paired lobes.
  • one of these four paired lobes is the frontal lobe and it occupies 2/3rds of the entire human brain.
  • the frontal lobe is associated with performing tasks such as speech and language production, walking and running, classifying and identifying objects, reacting to feelings, forming memories, forming the personality of a person, and attention involving tasks.
  • Since after the injury, Zack has an altered personality and his reaction to the situation has changed, this points out to the fact that he is most likely suffering from frontal lobe injury.
5 0
3 years ago
A biome is a large group of plants and animals living together in a specific _____
Flura [38]
Environment/ habitat

8 0
3 years ago
The fossils of human ancestors show and increase in complexity as we move forward in the geological time scale. What does this c
alex41 [277]
It indicates that our ancestors had a different build than humans of today.
8 0
3 years ago
Read 2 more answers
When DNA is replicated, the original molecule serves as a(n) _____.
egoroff_w [7]
The answer would be B) Template

I hope that helps ^-^
6 0
3 years ago
Read 2 more answers
Chromatin fiber is group of nucleosomes right?
Morgarella [4.7K]

Answer:

yes

Explanation:

Nucleosomes fold up to form a 30-nanometer chromatin fiber, which forms loops averaging 300 nanometers in length. The 300 nm fibers are compressed and folded to produce a 250 nm-wide fiber, which is tightly coiled into the chromatid of a chromosome.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The part of the brain responsible for speech, thought, and memory is the _____.
    13·2 answers
  • What is a gene?
    6·1 answer
  • Photosynthetic cyanobacteria caused an increase in atmospheric levels of
    6·1 answer
  • Two lines perpendicular to one another can represent a _____-dimensional coordinate system.
    7·2 answers
  • Before scientists can manipulate DNA they must first do a DNA extraction what is done during this process?
    14·1 answer
  • When dna is _____________, the genes within it tend to be inaccessible and silent; that is, they rarely code for protein?
    7·1 answer
  • We should be taking every step we can to protect our health. Getting vaccinated against bacterial meningitis will help protect o
    8·1 answer
  • MULTIPLE CHOICE QUESTION<br> True or False? Nerve cells are stem cells.<br> Halse
    13·1 answer
  • List and describe three of the five characteristics of life. * help pls i give 50 points
    12·2 answers
  • What is cell ? gxr-awjv-dtb​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!