please look at attachment
1. Provide an example of a research question using matched samples. (Include numbers and notation)
2. Provide an example of a research question using repeated measures. (Include numbers and notation)
3. Provide an example of a research question using independent samples. (Include numbers and notation)
4. You have obtained the number of years of education from one random sample of 38 police officers from City A and the number of years of education from a second random sample of 30 police officers from City B. The average years of education for the sample from City A is 15 years with a standard deviation of 2 years. The average years of education for the sample from City B is 14 years with a standard deviation of 2.5 years. Is there a statistically significant difference between the education levels of police officers in City A and City B?
a. What is the correct test for this question?
b. What are the hypotheses?
c. Calculate the degrees of freedom.
d. What is the cutoff(s)?
e. Test the hypotheses.
f. What type of error could have been made? What would it state?
5. Does therapy reduce anxiety? Measure anxiety levels before and after therapy One sample (same people) measured twice.
Patient Before X1 After X2
1 40 24
2 42 30
3 36 37
4 31 21
5 55 32
a. What is the correct test for this question?
b. What are the hypotheses?
c. Calculate the degrees of freedom.
d. What is the cutoff(s)?
e. Test the hypotheses.
f. What type of error could have been made? What would it state?
6. A professor wants to know if her introductory statistics class has a good grasp of basic math. Six students are chosen at random from the class and given a math proficiency test. The professor wants the class to be able to score above 70 on the test. The six students get scores of 62, 92, 75, 68, 83, and 95. Can the professor state that the mean score for the class on the test would be above 70?
a. What is the correct test for this question?
b. What are the hypotheses?
c. Calculate the degrees of freedom.
d. What is the cutoff(s)?
e. Test the hypotheses.
f. What type of error could have been made? What would it state?
7. Researchers want to test a new anti-hunger weight loss pill. They have 10 people rate their hunger both before and after taking the pill. Does the pill do anything? Use alpha = 0.05
Before After Difference
9 7 2
10 6 4
7 5 2
5 4 1
7 4 3
5 6 1
9 7 2
6 5 1
8 5 3
7 7 0
a. What is the correct test for this question?
b. What are the hypotheses?
c. Calculate the degrees of freedom.
d. What is the cutoff(s)?
e. Test the hypotheses.
f. What type of error could have been made? What would it state?
8. The data below represents weight loss for people on three different exercise programs. Can we say that these exercise programs will result in equivalent weight loss?
Program A. Program B. Program C
2.5. 4.8 4.3
8.3. 4.9 6.2
5.3 1.1 5.7
9.9 7.7 9.1
5.1 1.2 7.0
a. What is the correct test for this question?
b. What are the hypotheses?
c. Calculate the degrees of freedom.
d. What is the cutoff(s)?
e. Test the hypotheses.
f. What type of error could have been made? What would it state?
Try it now!
How it works?
Follow these simple steps to get your paper done
Place your order
Fill in the order form and provide all details of your assignment.
Proceed with the payment
Choose the payment system that suits you most.
Receive the final file
Once your paper is ready, we will email it to you.
Our Services
Custom Writings Help is a Quality-Oriented Company in Online Writing as a result of hiring exceptional professionals to execute clients' tasks.
Essays
At Custom Writings Help,We understand the struggle of research paper writing, and that is why at Custom WritingS Help, we are all out to help you. We pride ourselves on having a team of clinical writers. The stringent and rigorous vetting process ensures that only the 'BEST' Writers are chosen for the job. We have highly qualified Ph.D. and MA writers working with us; we equally offer these experienced writers specific bonuses and incentives to make them deliver highly original, unique, and informative content at reasonably low prices.
Admissions
Thesis Writing Service
Worlwide, Many Masters Students are struggling with Thesis Completion. A thesis is likely to be the longest and most challenging piece of work a student has ever completed. However, unlike essays and other assignments, a student can pick a particular interest topic and work on their initiative. Fortunately, we are there for you. At Custom Writings Help, you are assured of an authentic, imaginative, informative, linguistically great, and advantageous thesis that adheres to all your needs. So, why continue considering different writers when you have discovered the best in the field?
Editing
Custom Papers
Not a single student can avoid writing custom papers. However, a total lack of experience, skills, and time makes it very hard to produce a superb writing piece. Therefore, if you are seeking professional help, turn to us. Our specialized and experienced writers compose a variety of model papers, including custom essays, college term papers, research papers, book reports, MBA essays, executive summaries, dissertations, Ph.D. theses, admission essays, and research proposals for college and university students at any level.
Coursework
Essay Writing
Most of the students disregard the critical principles of essay writing and compose papers below sensible guidelines. Therefore, with Custom Writings Help, one should not worry about his/her essay. Our Writers compose informative and engaging content on all complexities and topics. We write meaningful and smart essays while prioritizing all aspects that bring about a good grade, such as impeccable grammar, proper structure, zero-plagiarism, and conformance to guidelines.
Coursework
Coourse Work Writing
Don't let the seemingly never-ending onslaught of writing assignments get you down. If you are looking where to get course work assistance online, the writers at Custom Writings Help are here to assist you with all of your writing needs. We undertake to unique delivery of papers that meet the professor's requirements. The content is proofread, edited, and checked plagiarism before submission to customers. No matter how big or small your work is, we will deliver on time. Try US Now! !
Coursework
Dissertation Writing Service
High-Quality Dissertation Writing Services are rare. They require Ph.D. academicians – not easily found. However, are an exception. The years, time, and resources we have invested in the dissertation world has given us a competitive advantage over others. Choose to come to Custom Writings Help; You will find perfect Ph.D. consultants who have written hundreds of dissertations theses ready to help you. Let our dissertation-writing services help you craft your dissertation, for you are assured we will give you the results.