points) The study investigates:-. A study was performed to compare the effects of three ointments (labeled A, B and C) for treating eye infections in dogs. A trained veterinarian examined each dog and classified its eye infection as either minimal or severe. Within each of the two infection classes, the dogs were randomly assigned to receive ointment A, B or C. After a week of treatment, the eyes were checked to see the condition of the infection. What type of design was used? a. Stratified random sample b. Cluster sampling To Randomized Blocking design Answer C d. Multistage sampling e. Simple random sample 14. Suppose you are doing a comparison of the means of 2 groups, poth with sample sizes of 12, using the t-test, and your alternative hypothesis has the "not equals"() sign. After doing the calculations, the results give a test statistic of f - 1.98. What is the p-value for this comparison? 12# 2 = 24 A. pt(1.98.23.lower.tail=FALSE) = 0.02989532 df = 24 - 1 = 123 pi(1.98,11,lower,tail=FALSE) 0.03663465 ""pi(1.98 23.lower.tail=FALSE) = 0.05979064 D. .2 pu/ 1.98,1 1.lower.tail-FALSE) = 0.0732693 Answer c 15. The are robust to outliers, whereas the are not a. mean and mediant standard deviation and interquartile range b. mean and standard deviation; median and interquartile range c standard deviation and interquartile range: mean and median dynedian and interquartile range; mean and standard deviation c. median and standard deviation: mean and interquartile range Answer is