12. A researcher at The Ohio State University believes that a certain component of ant venomcan be used to lessen the amount of swelling in the knuckles of people suffering from arthritisThe ant venom treatment has been made into a cream that can be rubbed on affected areasExplain how you would design an experiment to investigate whether this new treatment, whenused each day for one week, causes a lower degree of swelling in arthritis sufferers. (You maysuppose that 200 people suffering from arthritis have already volunteered to be experimentalsubjects.) Identify the explanatory variable and the response variable in your experiment

let us consider the 200 patients sufferring from arthritis volunteerred to be an experimental…

Answered: 12. A researcher at The Ohio State…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Can someone calculate this problem and explain it to me?
You are a researcher who wants to know what the mean (µ) level of anxiety would be for the whole population if they were all receiving a new anti-anxiety therapy. You can’t give the therapy to the whole population, so you give it to a sample, and you get M = 32.1 as the average anxiety level for the sample on the therapy. What is the reason that you can’t just simply assume that µ = 32.1? You didn’t use random assignment Sampling error Descriptive statistics Inferential statistics
A researcher would like to examine how the chemical tryptophan, contained in foods such as turkey, can affect mental alertness. A sample of n = 9 college students is obtained and each student’s performance on a familiar video game is measured before and after eating a traditional Thanksgiving dinner including roast turkey. The average score dropped by M = 14 points after the meal with SS = 1152 for the difference scores. A. Is there is significant difference in performance before eating versus after eating? Use a two-tailed test with α = .05. SMD = ___________________________ tcritical = ________________________ tcalculated = ________________________ Decision = _______________________ B. Compute r2 to measure the size of the effect. r2 = _____________________________ C. Write a sentence demonstrating how the outcome of the test and the measure of effect size would…
What is null and alternative hypothesis for this case? The U.S. Department of Health monitors fishing waters, to determine if the bacteria count has risen above a maximum safe level of 70.
1. Three different treatments are given to 3 groups of patients with anemia. Increase in Hb% level was noted after one month and is given below. Test whether the difference in improvement in 3 groups is significant or not? Group A 3 1 2 0 1 2 2 Group B 3 2 2 3 1 3 2 Group C 3 4 5 4 2 2 4
Answer the whole quesrion
5. A pet food company randomly chooses two groups of 20 puppies for a study. One group eats a new brand of dog food and the other group eats an off-brand dog food for a period of 4 weeks. Researchers record muscular and skeletal growth rates in both groups. What type of study is being described?
i need the answer quickly
4. Do vaccines work? I take a sample of 1000 of unvaccinated people exposed outside and determined that 600 of them were infected with Comid-19. On the other hand, I take a sample of 800 people who are vaccinated against Comid- 19 and exposed outside and determined that 420 of them were infected with Comid-19. Using a = 0.06, test whether or not the rate of getting Comid-19 is higher in unvaccinated individuals compared to vaccinated ones.
A 2019 study surveyed Norwegian parents about their children's eating habits and taste sensitivities. We are interested in seeing if there is a relationship between sensitivity to sweetness and emotional overeating. The study reports an F* = 2.72 with df = 2 and dfw = 39. How many levels of 'sensitivity to sweetness' were used in the study? How many subjects participated in the entire study? Add Work
first picture is the background information
If a treatment is expected to decrease scores in a population with µ= 30, then the alternative hypothesis is µ ≤ 30. True or false?

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