Question

In: Statistics and Probability

A research team is interested in the difference between serum uric acid levels in patients with...

A research team is interested in the difference between serum uric acid levels in patients with and without Down’s syndrome.
In a large hospital for the treatment of the mentally challenged, a sample of 12 individuals with Down’s syndrome yielded a mean of 4.5mg/100 ml.
In a general hospital a sample of 15 normal individuals of the same age and gender were found to have a mean value of 3.4. If it is reasonable to assume that the two populations of values are normally distributed with variances equal to 1 and 1.5 respectively, find the 95 percent confidence interval for the difference of the two means.

Solutions

Expert Solution

for further query please comment below.thank you


Related Solutions

A research team wanted to compare the difference between serum uric acid levels in patients with...
A research team wanted to compare the difference between serum uric acid levels in patients with and without Down syndrome. A sample of 12 individuals with Down syndrome yielded a mean of 4.5 mg/100 ml with standard deviation 1 mg/100 ml while a sample of 15 individuals without Down syndrome yielded a mean of 3.4 mg/100 ml with standard deviation 1.2 mg/100 ml. Let those with Down syndrome be group 1 and those without be group 2. Note: When doing...
Investigators interested in the association between serum vitamin D levels and various birth outcomes recruited pregnant...
Investigators interested in the association between serum vitamin D levels and various birth outcomes recruited pregnant mothers to have a blood draw during the second trimester of their pregnancy. Mothers were followed until they gave birth. The health outcomes were compared among mothers with low, adequate, and high vitamin D levels. A) Describe the study as to its particular sampling method. B) Describe a risk measurement that you think would be most appropriate to compare the groups, and justify your...
Researchers are interested in whether there is a difference in happiness levels between people that live...
Researchers are interested in whether there is a difference in happiness levels between people that live on the West Coast and people that live on the East Coast. A simple random sample of people were selected from each coast to take an assessment of their happiness. Scores on the happiness assessment range from 1-20. The happiness scores for the individuals assessed are below. East Coast Happiness Scores West Coast Happiness Scores 9.7, 18.8, 19.9, 10.1, 8.9, 15.0, 16.4, 10.1, 11.0,...
Calvin is a 15-year-old, obese young man with severely elevated serum lipid levels. The healthcare team...
Calvin is a 15-year-old, obese young man with severely elevated serum lipid levels. The healthcare team has decided to prescribe lovastatin (Mevacor). a) What are the concerns for teenagers who are taking lovastatin? b) What classification of lipid-lowering medication is lovastatin, and how does it work? c) What impact does weight, specifically obesity, have on lipid levels?
Calvin is a 15-year-old, obese young man with severely elevated serum lipid levels. The healthcare team...
Calvin is a 15-year-old, obese young man with severely elevated serum lipid levels. The healthcare team has decided to prescribe lovastatin (Mevacor). a)What are the concerns for teenagers who are taking lovastatin? b)What classification of lipid-lowering medication is lovastatin, and how does it work? c)What impact does weight, specifically obesity, have on lipid levels?
what are the difference between experimental research and correlation research essay on difference between experimental research...
what are the difference between experimental research and correlation research essay on difference between experimental research and correlation research
A research team is studying a new pain medication for patients suffering from fibromyalgia. Patients suffering...
A research team is studying a new pain medication for patients suffering from fibromyalgia. Patients suffering from chronic pain as a result of fibromyalgia were divided into two categories: Treatment and Placebo. Patients in the treatment group were injected with the new drug while patients in the placebo group were injected with saline solution. Neither the patients, nor the health care practitioners admininstering the study knew who was receiving the actual drug. After two weeks the patients were asked to...
QUESTION 4 A researcher is interested in testing whether there is a difference in aggression levels...
QUESTION 4 A researcher is interested in testing whether there is a difference in aggression levels between kids who watch only TV shows, only play video game, or watch TV and play video games. Which statistical test should be used to determine whether a difference exists in aggression levels for these 3 groups? T-Test for One Sample T-Test for Independent Samples T-Test for Related Samples One-Way ANOVA Two-Variable Chi Square Test Question 5: A psychologist is interested in the relationship...
Why could sea urchin be used by a research team that is interested in developing a...
Why could sea urchin be used by a research team that is interested in developing a drug that could disrupt the binding of mature sperm to the egg cell membrane to prevent conception?
A nurse is interested in whether there is a relationship between daily levels of stress and...
A nurse is interested in whether there is a relationship between daily levels of stress and likelihood of a heart attack. The stress scores (predictor variable) and risk of heart attack values (criterion variable) from a small sample of participants are depicted below. Stress Score                                Risk of Heart Attack (Higher values = more stress)     (Higher values = greater risk)         1                                                     9       5                                                     8       2                                                     6       5                                                     8 Set up the regression equation and use to predict the risk of heart attack for a person with...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT