7) In a study among elderly patients with diabetes, the aim was to study if the intake of metformin wasassociated with lower level of vitamin B12. The alternative hypothesis is:A. Vitamin B12 status is not associated with metformin intakeB. Vitamin B12 status is not different between elderly diabetic patients' group who takes metformin incomparison to the group who does not take metforminC. A+B are correctD. Metformin intake in elderly patients with diabetes reduces vitamin B12 status28) A group of infants with rickets were selected to participate in a study based on diagnosis, ethnicity and ageand then they were matched with healthy infants based on age, weight and higher. The goal of the studywas to compare vitamin D status between the two groups. This is:A. A cross sectional studyC. Retrospective studyD. Noe is applicableB. Case control study29) The level of education (Baccalaureate, Master, & PhD) is considered:A. Scale variableC. Ordinal variableB. Metric variableD. None of the choices30) Researchers intended to take urine samples from university students to assess if iodine level can affectuniversity achievement in terms of GPA (Total grades).A. In this case specifically, researchers should obtain the names of the study participants and disclose themto authorityB. Since it is about urine samples, informed consent is not requiredC. B+A are correctD. Informed consent should be obtained and biological samples should be confidential31) Two researchers from An-Najah National University decided to conduct a study on diabetic patients inPalestine in order to determine the prevalence of the disease in 2022 in the West Bank particularly. The beststudy design to use isA. Prospective cohort studyC. Case-control studyB. Cross-sectional studyD. Retrospective cohort study2: Fill the following statements with the suitable answer from the tableNo.1456789102Method Type IIAnswer3Retrospective clustercohort studya simple Sampling dependentType 1 independent arandombiasfocusgroup1. Providing more information about the research setting, data collection tools, and the context of the study is a ---section of research.2.is a research technique used to collect data through group interaction3.-occurs when a research study design fails to collect a representative sample of a target population----variable is a variable whose value will change depending on the value of another variable4.5. A study design that is suitable for diseases with long latency period6.error is when the test result says you have coronavirus, but you actually don't.- error7. The mistaken acceptance of an actually false null hypothesis is8. Successive random sampling of units from larger to smaller units (e.g., states, then zip codes, then households)----samplingis an example ofsampling9. The sampling method that involves random selection of elements from the sampling frame is

Note- As per our policy we can answer only the first question. Please make a new request for the…

Answered: 7) In a study among elderly patients…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Hepatitis B and Pancreatic Cancer. The article “Study Links Hepatitis B and Cancer of Pancreas” by D. Grady, appeared in the September 29, 2008 issue of the NewYork Times. It reported that, for the first time, a study showed that people with pancreatic cancer are more likely than those without the disease to have been infected with the hepatitis B virus. The study by M. Hassan et al., titled “Association Between Hepatitis B Virus and Pancreatic Cancer” (Journal of Clinical Oncology, Vol. 26, No. 28, pp. 4557–4562) compared 476 people who had pancreatic cancer with 879 healthy control subjects. All were tested to see whether they had ever been infected with the viruses that cause hepatitis B or hepatitis C. The results were that no connection was found to hepatitis C, but the cancer patients were twice as likely as the healthy subjects to have had hepatitis B. The researchers noted, however, that “. . . while the study showed an association, it did not prove cause and effect. More work…
Since this research focuses on sleep habits in college students and its effect on mental health, we have proposed the research question to be what the prevalence of college student's mental health issues are due to poor sleeping habits.Previous research has shown that anxiety and depression can be two indicators of poor sleep habits in college students (Becker et al., 2018). As mentioned before, college students are also at risk of developing poor sleep habits because, as freshmen, they transition into a more significant workload than they are accustomed to doing. They are also given more freedom with their time. So, we predict a relationship between mental health and low amounts of sleep-in students. In contrast, the alternative outcome is that there will be no mental health problems arising as students lose sleep for long periods. Since getting good sleep allows us to function better throughout our days, we will likely see the impact bad quality and quantity of sleep will have on…
A researcher suspects that the actual prevalence of generalized anxiety among children and adolescents is higher than the previously reported prevalence of generalized anxiety disorder among children and adolescents. The previously reported prevalence of generalized anxiety disorder among children and adolescents is 4.1%, and the researcher conducts a study to test the accuracy of the previously reported prevalence of generalized anxiety disorder by recruiting 98 children and adolescents from various pediatricians’ offices and tests them for generalized anxiety disorder using the DSM-5. The researcher determines that the prevalence of generalized anxiety disorder among the participants of the study is 6.8%. For a level of significance of 5%, what should the researcher’s decision rule look like? Reject H0 if z is less than or equal to -1.96. Reject H0 if z is greater than or equal to 1.96. Reject H0 if z is less than or equal to -1.645. Reject H0 if z is greater than or equal to…
A new drug to treat psoriasis has been developed and is in clinical testing. Assume that those individuals given the drug are examined before receiving the treatment and then again after receiving the treatment to determine if there was a change in their symptom status. If the initial results showed that 2.0% of individuals entered the study in remission, 77.0% of individuals entered the study with mild symptoms, 16.0% of individuals entered the study with moderate symptoms, and 5.0% entered the study with severe symptoms calculate and interpret a chi-squared test to determine if the drug was effective treating psoriasis given the information below from the final examination. A. We reject H0 because 6628.08 is greater than 11.07. We have statistically significant evidence at the alpha equals .05 level to show that the distribution of the severity of psoriasis cases at the end of the clinical trial for the sample is different from the distribution of the severity of psoriasis…
Most cases of cervical cancer are linked to a few strains of the human papilloma virus (HPV). The pharmaceutical company Merck developed a vaccine (Gardisil) against these HPV strains. Worldwide clinical trials followed young women after vaccination or administration of placebo for two to four years for signs of HPV-caused cervical cancer. Based on a sample of 100 women in the Gardisil group, 24 % developed cervical cancer, and based on a sample of 100 women in the placebo group, 34 % developed cervical cancer. Test the claim that the proportion of women who developed cervical cancer in the Gardisil group is less than the proportion of women who developed cervical cancer in the placebo group at a = 0.10. Round your answers to three decimal places, and round any interim calculations to four decimal places. Fill in the hypotheses below where p₁ denotes the proportion of women who developed cervical cancer in the Gardisil group and P2 denotes the proportion of women who developed cervical…
In an article dated April 24, 2005, USA Today reported on the 17th annual study on teen drug abuse conducted by the Partnership for a Drug-Free America. According to the survey of 8100 teens was Vicodin, with 19%-or about 8.2 million youths-reporting that they had used it to get high. OxyContin and drugs for attention-deficit disorder, such as Ritalin/Adderall, followed with 1 in 10 teens reporting that they had tried them. Is the statement about 19% of youths abusing Vicodin inferential or descriptive? Is the statement about about 8.2 million youths abusing Vicodin inferential or descriptive?
A study was conducted in Thailand to study the association between Vitamin A deficiency and death among children with measles. A summary of their data is provided below. Which of the following statements is true? Died Did not die Have Vitamin deficiency 20 20 Do not have vitamin deficiency 25 100 Those without vitamin D deficiency are more likely to die than those with Vitamin D deficiency There is no association between Vitamin D deficiency and death Those with Vitamin D deficiency are more likely to die than those without Vitamin D deficiency None of these answers are co
You are conducting a hypothetical retrospective study on use of plastics and prevalence of current medical problems in students. You hypothesize that participants who used more plastic cups in high school will exhibit more medical problems today. You ask all PH1 students to recall how many times they drank out of plastic cups in high school. Your participants struggle to recall this information and end up guessing how often they used plastic drinking containers in high school. Your study design will be negatively impacted by: (select one) A. Misrepresentation B. Recall error C. Negative associations D. Recall bias

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS