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
Tatiana [17]
3 years ago
12

Solutions for your homework

SAT
1 answer:
marysya [2.9K]3 years ago
5 0

Answer and Explanation:

1. The experimental units are the 80 people used in the experiment. This is because an experimental unit is the smallest element of an experiment where the treatment is applied. In this case, the smallest element of the experiment subjected to the experimental treatments is the people who are participating.

2. Two treatments are used in this experiment. Experimental treatment is what you want to measure and test through the experiment. In this case, the experiment wants to test the difference between ordinary Nike shoes and Nike shoes manufactured to reduce arthritis cases, that is, there are two shoes tested, therefore, there are two treatments.

3. A potential problem presented in the project is the lack of homogeneity of the experimental units. This is because, although all the people who are participating in the experiment show first signs of knee arthritis, the researcher did not define the age, gender, height and weight that the volunteers should have to participate in the experiment. This can promote inaccurate data as these elements are also important in the onset of arthritis. To improve this problem, the researcher should have selected people of the same age, height, weight and gender.

4. A placebo-controlled, double-blind study is a study that seeks to discover the effects of an element on a person's body. In the case shown above, the element is Nike shoes that slow the progression of knee arthritis. In the case of the placebo-controlled, double-blind study, the individuals who will test the studied element will be divided into two groups. One of the groups will receive the element capable of causing changes in the body (in this case Nike shoes that delay arthritis), while the other group will receive a placebo, which is an element exactly the same as the element that promotes modifications, but has no function. . This type of study is called double-blind, because neither the researcher nor the volunteers know which group they are in. In this way, the experiment is able to present real results data, because neither the participants will be psychologically led to think that they are feeling the modifications of the tested element, nor will the researcher be led to believe that these changes actually occurred.

5. The blocking can divide 20 men and 20 women for each group. This is because the experimental block limits the randomness in the formation of experimental groups when this randomization is very difficult to achieve. Thus, when using the blocking , the researcher configures the randomness of the groups, which will facilitate the analysis of results and prevent all women from forming a group and all men from forming another group, as well as preventing groups from being formed with different amounts between men and women.

You might be interested in
suppose that $\star(n) = \left\{n - 2, n + 2, 2n, \frac {n}{2}\right\}$. for example, $\star(6) = \{3,4,8,12\}$. for how many di
kondaur [170]

Answer:

dont know sorry

Explanation:

3 0
2 years ago
Consider the following code segment. String[][] arr = {{"hello,", "hi,", "hey,"}, {"it's", "it is", "it really is"}, {"nice", "g
katrin2010 [14]

"Hi, it is great to get to see you again." would be printed when the code segment is executed.

<h3>The kinds of data type.</h3>

Basically , there are five (5) main recognized data types used in computer programming and these include the following:

  • Character type (char).
  • Floating point type (float).
  • Integer type (int).
  • Boolean (bool)
  • String (str)

<h3>What is a string?</h3>

A string can be defined as a data type which is commonly used for data values that contain ordered sequences of characters. Also, a string can either contain a single character or be entirely empty.

For instance, "Hello world" is a typical example of a string in computer programming.

Based on the given code segment, "Hi, it is great to get to see you again" would be printed when it is executed by using a compiler.

Read more on a string here: brainly.com/question/25619349

6 0
2 years ago
In industry: most scientific discoveries are made useful products are made scientific principles are invented
Elina [12.6K]

Answer:

Useful products are made

Explanation:

4 0
3 years ago
In this scenario, the slow or shuffling gait is caused by gradual progressive loss of control over moments due to inadequate (de
pshichka [43]

The slow or shuffling gait is caused by gradual progressive loss of control over moments due to inadequate (decreased) levels of the neurotransmitter <u>dopamine</u> in the brain.

<h3>What is are neurotransmitters?</h3>

These are body's chemical messangers which are released at the end of a nerve fibre by the arrival of a nerve impulse and, by diffusing across the synapse

So therefore, the slow gait is caused by gradual progressive loss of control over moments due to inadequate (decreased) levels of the neurotransmitter dopamine in the brain.

Learn more about neurotransmitters:

brainly.com/question/12718731

#SPJ1

6 0
1 year ago
Who does the warden think found the tube? in holes
agasfer [191]
H yahyyayayyyhhhhhhhhhh
3 0
3 years ago
Other questions:
  • Which phrase best describes speed?
    10·2 answers
  • In the figure below, ray was constructed starting from rays and . By using a compass D and G were marked equidistant from E on r
    13·1 answer
  • What are three myths about alcohol and what is the truth about each myth?
    13·1 answer
  • Which of the following statements about communication is most accurate?
    6·2 answers
  • Which has more influence over who we become: circumstance or personality? Use evidence from The Outsiders novel to support your
    8·1 answer
  • What point on the graph represents ignors data
    8·1 answer
  • An article reported on a school​ district's magnet school programs. Of the 1749 qualified​ applicants, 955 were​ accepted, 309 w
    6·1 answer
  • A food worker suspects there are mice in the food establishment.
    6·1 answer
  • The gall he displayed during his exchange with the police officer made us all uneasy.
    13·1 answer
  • What are the functions of „hubble space telescope‟.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!