1. A study was set up to measure synthesis of alkaline phosphatase in two groups
ID: 3295751 • Letter: 1
Question
1. A study was set up to measure synthesis of alkaline phosphatase in two groups of patients: normal healthy subjects (n=6) and non-responsive patients with coeliac disease (n=7). The data is not normally distributed; the null hypothesis is that the medians of the two populations are equal. What statistical testing method would be used to answer this question.
2. A researcher wants to examine the effects of a particular treatment program by looking at the presence of absence of an outcome variable (dichotomous variable) such as pain, before and after treatment. The patients are assigned to matched pairs by age, sex and clinical condition. What statistical testing method would be used to answer this question.
3. Researchers wish to test the effect of suing a lumbar support pillow on angular position of the pelvis in relaxed sitting. The researchers’ non-directional hypothesis is that pelvic tilt will change with use of a support pillow. They choose 40 participants and the angle of the pelvic tilt is measured with and without the pillow. What statistical testing method would be used to answer this question.
One-sample t test
Paired-sample t test
One Sample test for a binomial approximation methods
One sample Wilcoxon-signed
Mann-Whitney (U) Test: Two
One-way ANOVA
McNemar Test
Pearson product-moment
Kruskal-Wallis
Spearman rank correlation
Explanation / Answer
1. We use non parametric test .Sign test would be used to answer this situvation.
2. We used paired t test.
3. Paired t test
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