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
Kitty [74]
3 years ago
10

400 students were randomly sampled from a large university, and 289 said they did not get enough sleep. Conduct a hypothesis tes

t to check whether this represents a statistically significant difference from 50%, and use a significance level of 0. 1
SAT
1 answer:
jarptica [38.1K]3 years ago
4 0

Answer:

The sample proportion represents a statistically significant difference from 50%

Explanation:

The sample proportion is the same as 50%

Alternate hypothesis: The sample proportion is not the same as 50%

z = (p' - p) ÷ sqrt[p(1 - p) ÷ n]

p' is sample proportion = 289/400 = 0.7225

p is population proportion = 50% = 0.5

n is number of students sampled = 400

z = (0.7225 - 0.5) ÷ sqrt[0.5(1 - 0.5) ÷ 400] = 0.2225 ÷ 0.025 = 8.9

The test is a two-tailed test. Using a 0.01 significance level, critical value is 2.576. The region of no rejection of the null hypothesis is -2.576 and 2.576.

You might be interested in
Please select the word from the list that best fits the definition the unintended and unrecognized consequence of an element of
Vinvika [58]

The unintended and unrecognized consequence of an element of society is generally referred to as a latent function.

<h3>What is a latent function?</h3>

A latent function can be defined as the functions of various organs, agencies, business enterprises, private or government (public) institutions of society that are categorized as being unintended and unrecognized consequence.

This ultimately implies that, latent functions refers to any of those function that can neither be perceived nor proposed. Thus, latent functions are typically considered as being perceived, expressed, or planned by the general public (population).

In this context, we can infer and logically deduce that a latent function is generally referred to as the unintended and unrecognized consequence of an element of society.

Learn more latent function about here: brainly.com/question/11114470

#SPJ1

3 0
2 years ago
Which of the following is true of both the ACT and the SAT?
Damm [24]

Answer:

D.both tests have a reading section

Explanation:

5 0
3 years ago
when researching a career goal it it probably most important to ask what you will need for this career
Gelneren [198K]
I agree. because you never know. you might go to the career and you dont like so you have to research about it to get a great job 
3 0
3 years ago
Bla bla bla i love brainly cool free
CaHeK987 [17]

Answer:

ty

Explanation:

4 0
3 years ago
Read 2 more answers
1. Consumer law is the system that is designed to protect the people involved in a market. True or false
slavikrds [6]
1. TRUE. The Consumer Law was to help prevent or detect business frauds. 
2. Written Contracts (Oh gosh I really dont remember this one. You should double check this
3. C.
4 0
3 years ago
Read 2 more answers
Other questions:
  • An exact duplication of the complete set of chromosomes of a cell followed by the separation of these duplication sets into two
    6·1 answer
  • Several teeth were found in an area of flat land covered with trees and plants. The teeth were examined by a paleontologist, and
    13·2 answers
  • Economic principle stating that consumers will demand more of a product as the price decreases. T or F
    10·2 answers
  • What is your thoughts on the Daybell case<br><br> 7-8 sen.
    6·1 answer
  • Find the sum of (–4 + i) and (10 – 5i). –3 + 5i –3 - 5i 6 – 4i 6 – 6i.
    8·1 answer
  • Sally and ann are trying to move a box across the floor. Sally is pushing the box to the right with a force of 100n and ann is p
    8·1 answer
  • Which is the correct solution to the cubic equation,.
    10·1 answer
  • Which of the following statements is not true about peer-to-peer (p2p) software?.
    9·1 answer
  • Which of the following is a technique to improve internal validity
    5·1 answer
  • Which of the following are examples of sociocultural factors
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!