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
ahrayia [7]
3 years ago
12

Solutions for your homework

SAT
1 answer:
vfiekz [6]3 years ago
7 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
Which of the statements listed below is negative aspect of a volcanic eruption.
Gemiola [76]
The ecliptic is the plane of Earth's orbit around the Sun. From the perspective of an observer on Earth, the Sun's movement around the celestial sphere over the course of a year traces out a path along the ecliptic against the background of stars.
5 0
2 years ago
A concise introduction to mixed methods research pdf
sergiy2304 [10]

The 'Mixed methods' is known to be a kind of a research approach and it is one where a researchers is known to take and examine both quantitative and qualitative data inside the same study.

<h3>What is the model about?</h3>

The Growth of mixed methods research is one that is seen in a lot of discipline such as the nursing and it is one whose type of user research often combines qualitative and quantitative methods in one study.

Hence, The 'Mixed methods' is known to be a kind of a research approach and it is one where a researchers is known to take and examine both quantitative and qualitative data inside the same study.

Learn more about mixed methods from

brainly.com/question/24241331

#SPJ1

8 0
1 year ago
Which statement below regarding membrane structure and membrane transport is true? a. Increasing the proportion of unsaturated f
solong [7]

The statement regarding membrane structure and membrane transport which is true is: B. Cyclization of membrane phospholipid fatty acids (like cyclopropane) would confer more rigid, straighter hydrocarbon chains.

<h3>What is a membrane structure?</h3>

A membrane structure can be defined as a thin bilayer (double sheet) of an internal cell compartment which forms the outer boundary in living cells that are found in the body of a living organisms.

<h3>What is membrane transport?</h3>

A membrane transport can be defined as collection of mechanisms that are saddled with the responsibility of regulating the movement of solutes such as ions and tiny particles across or through biological membranes and lipid bilayers containing proteins embedded in them.

Based on scientific studies, the similarity between membrane structure and membrane transport is that cyclization of membrane phospholipid fatty acids such as cyclopropane would confer more rigid, straighter hydrocarbon chains.

Read more on membranes here: brainly.com/question/1391475

4 0
2 years ago
Which statements are true regarding these two compounds? Check all that apply. Acetone is a covalent compound, while sodium chlo
hoa [83]

Answer:a,c

Explanation:

just did the assignment

3 0
3 years ago
If a mutual fund has net assets of $294,000 and 16,800 shares, then each share has a net asset value of $17.50. Please select th
vlada-n [284]
There are no choices provided tho...
6 0
3 years ago
Other questions:
  • A school cafeteria has 40 tables. 35% of the tables have 8 chairs at each table. The remaining 65% of the tables have 6 chairs a
    15·1 answer
  • Why don’t hurricanes form near the equator
    7·2 answers
  • a survey found that 30% of teenagers don’t wear a seatbelt. If five teenagers are selected at random, find the probability that
    15·1 answer
  • Give examples time series application
    11·1 answer
  • What does the underlined word mean in the following sentence? A mi amigo le gusta cantar. to dance to sing to sunbathe to relax
    15·1 answer
  • Mike traveled for 4 hours at a rate of 55 mph. How far did he travel?.
    8·1 answer
  • As the elements of group 17 are considered in order of increasing atomic number, there is an increase in.
    6·1 answer
  • Describe how the force of gravity acts upon an object
    7·2 answers
  • Based on the information provided, what type of tax has Country Q implemented? an income tax a tariff a corporate tax an excise
    8·2 answers
  • The graph below summarizes the demand and costs for a firm that operates in a monopolistically competitive market. Instructions:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!