9 In order to determine whether or not a particular medication was effective in curing the common cold, one group of patients was given the medication, while another group received sugar pills. The results of the study are shown below. Patients Cured Patients Not Cured Received medication 70 10 Received sugar pills 20 50 We are interested in determining whether or not the medication was effective in curing the common cold. (i) Compute the sample proportion of patients p1 that was cured by the medication and the proportion of p 2 that was cured by sugar pills (ii) Test the Hypothesis that H0: P P2 =0 against Ha: P P2 0 at 5% label of significance 1 1 patients 10. Consider the following results for two samples randomly taken from two populations. Sample Size Sample Mean Sample Standard Deviation 2 2 Test the hypothesis that H 0 : 1 = 2 vs steps using p-value approach. Sample A 31 Sample B 35 106 102 8 7 2 2 H a : 1 2 at 5% level of significance. Show all six