QUESTION :

1. A pharmaceutical company conducted a study to test the effect of a new high blood medication. The company selected 15 subjects from a population. Each subject was randomly assigned to one of three treatment groups equally {i.e. each group consists of ve subjects): Group 1 {10mui'day), Group 2 [5Dmglday) and Group 3 (IDDmQIday). After 30 days, doctors measured the blood pressure of each subject. Summary ofAnalysis n'lVarianoe table is shown in Table 3. Table 3 Sum of Degree of Mean Squares Freedom Square Treatments (i) (M Error (iii 1"} ---E-_- (a) Calculate the value for (iHviil from the above table. (b) Conduct a hypothesis test to test whether all treatment groups have the same mean using a 5% level of signicance. (14} i5}