Question: A study titled Factors Leading to Reduced Intraocular Pressure after
A study titled “Factors Leading to Reduced Intraocular Pressure after Combined Trabeculotomy and Cataract Surgery” in the Journal of Glaucoma (http://www. glaucomajournal.) investigated the influence cataract surgery alone and cataract surgery with trabeculotomy has on eye pressure. Two groups were formed for each type of surgery and were compared for similarities with respect to several factors beforehand. No significant difference was found between the two groups with respect to the number of preoperative glaucoma medications the patient was taking. Suppose a similar study involving six patients receiving the combined surgery and five patients receiving the cataract surgery alone produced the following values of number of medications.
Using the Mann–Whitney U test, determine whether the two groups are the same with respect to number of medications. Use a = 0.05.
Answer to relevant QuestionsTen North Carolina and 13 Texas peanut-producing counties were randomly identified and the 2008 peanut-yield rate, in pounds of peanuts harvested per acre, was recorded. Use the Mann–Whitney U statistic to test the ...Determine the p-value that would be used to complete the following runs tests: a. Ho: The sequence of gender of customers coming into the gym was random; Ha: The sequence was not random; with n(A) = 10, n(B) = 12, and V = ...The following data were collected in an attempt to show that the number of minutes the city bus is late is steadily growing larger. The data are in order of occurrence. At a = 0.05 do these data show sufficient lack of ...Randomness incorporates many different concepts. Referring to Applied Example 14. 12: a. What aspect of randomness will be tested using the chi-square test mentioned in part (i) of rule (c)? Describe how it will be used. b. ...A sample of the daily rental-car rates for a compact car was collected in order to estimate the average daily cost of renting a compact car. (See data below.) Find the 99% confidence interval for the median daily rental ...
Post your question