i) State the Hypotheses to Test. ii) Make a decision based on the information given. iii)What...
i) State the Hypotheses to Test. ii) Make a decision based on the information given. iii)What would be Type I and Type II errors. 5. A study is performed to examine the relationship between the concentration of plasma antioxidant vitamins and cancer risk. The table below shows data for plasma vitamin- A concentration in stomach-cancer patients and in controls (participants similar to the cancer patients but free of disease). Is there a significant difference in the mean concentration of plasma...
i) State the Hypotheses to Test. ii) Make a decision based on the information given. iii) What would be Type I and Type II errors. 4. The mean lifetime for cardiac stents is 8.9 years. A medical device company has implemented some improvements in the manufacturing process and hypothesizes that the lifetime is now longer. A study of 40 new devices reveals a mean lifetime of 9.7 years with a standard deviation of 3.4 years. Is there statistical evidence of...
i) State the Hypotheses to Test. ii) Make a decision based on the information given. iii) What would be Type I and Type II errors. 3. A study is conducted to compare mean cholesterol levels for individuals following a low carbohydrate diet for at least 6 months to individuals following a conventional (low-fat, low calorie) diet for at least 6 months. The data are summarized below: Diet Program Low Carbohydrate Conventional Sample Size Mean Cholesterol Std Dev Cholesterol 50 225.4...
i) State the Hypotheses to Test. ii) Make a decision based on the information given. iii) What would be Type I and Type II errors. 1. An investigator hypothesizes that cholesterol levels in children might be affected by educating their parents on proper nutrition and exercise. A sample of 40 families with a child between the ages of 10-15 who has been diagnosed with high cholesterol agree to participate in the study. All parents are provided educational information on nutrition...
photos for each question are all in a row
(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
explaim the mechanisms amd toxological effects if type 1
diabetes in this article
Exposure to arsenic in drinking water is associated with increased prevalence of diabetes. We previously reported an association of diabetes and urinary concentration of dimethylarsinite (DMAS"), a toxic product of arsenic methylation by arsenic (+ 3 oxidation state) methyltransferase (AS3MT). Here we examine associations between AS3MT polymorphism, arsenic metabolism and diabetes. Fasting blood glucose, oral glucose tolerance and self-reported diagnoses were used to identify diabetic individuals. Inorganic...