Can someone explain how to do this in R
> Data = c(22,21,18,19,20,15,19,20,15,20,17,20,21)
> m = mean(Data)
> m
[1] 19
> s = sd(Data)
> s
[1] 2.198484
> n = length(Data)
> n
[1] 13
> lc = m - qt(0.995,n-1) * s/sqrt(n)
> lc
[1] 17.13749
> uc = m + qt(0.995,n-1) * s/sqrt(n)
> uc
[1] 20.86251
The point estimate for mean is = 19
The 99% confidence interval is
(17.1375 , 20.8625)
Can someone explain how to do this in R Q5. (Exercise 1.49) Studies on treating Alzheimer's...
Please answer using R studio (1 point) Alzheimer's disease is a progressive disease of the brain. An article published in 2006 was critical of the methodology used in studies of Alzheimer's treatments conducted prior to 2006. In a random sample of n = 31 Alzheimer's studies, the quality of the methodology was measured on the Wong scale with scores ranging from 9 (low quality) to 27 (high quality) for each study. The data is provided below. data can be copied...
value of the -variable Remaining time: 152:54 min:sec) Problem 2 (1 point) Alzheimer's disease is a progressive disease of the brain. An article published in 2006 was critical of the methodology used in studies of Alzheimer's treatments conducted prior to 2006. In a random sample of 28 Alzheimer's studies, the quality of the methodology was measured on the Wong scale with scores ranging from 9 flow quality) to 27 (high quality for each study. The data is provided below. data...
(1 point) Alzheimer's disease is a progressive disease of the brain. An article published in 2006 was critical of the methodologt used in studies of Alzheimer's treatments conducted prior to 2006. In a random sample of n=26 Alzheimer's studies, the quality of the methodology measured on the Wong scale with scores ranging from 9 (low quality) to 27 (high quality) for each study. The data is provided below. x=c(19,14,15,11,19,10,14,26,18,19,10,23,23,27,21,13,17,21,23,24,16,21,10,13,24,20); A) Find a 89% confidence interval for the mean quality of...
if you have mini tab and can show how to do part b that would be great, if not no worries Problem 2 The thickness of a printed circuit board is an important quality characteristic. Data on board thickness (in inches) are given in Table 5E 1 The table has been uploaded to Folio) for 25 subgroups of three boards each. (a) [Pencil version] Set up an R chart by computing the initial set of seven lines (USL, UWL UOL,...
First, read the article on "The Delphi Method for Graduate Research." ------ Article is posted below Include each of the following in your answer (if applicable – explain in a paragraph) Research problem: what do you want to solve using Delphi? Sample: who will participate and why? (answer in 5 -10 sentences) Round one questionnaire: include 5 hypothetical questions you would like to ask Discuss: what are possible outcomes of the findings from your study? Hint: this is the conclusion....
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...
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...