Question

OMalley, Kaitlyn Answered Change your responses to resub To test the effectiveness of a new drug, a researcher gives one group the drug and the other group a placebo. At alpha=0.10, can it be concluded that the drug is effective? Use Table 3 below Medication Effective Not Effective Drug 32 9 Placebo 12 18 ... Refer to Table 3. What is the Chi-Square Test 1A 11.881 O B 12.771 O C 10.643 0 D 11.112

Answer 1

Medication Effective | not effective Total Doug 32 Post Placebo 12 tot 1341 30 .18. 1:44 ? 7 OBSERVED FREQUENCY Effective Not effective EXPECTED FREM, stage KVITETIT Doeg 32 1 9 polis Doua Doug an Effective Not Effective 144841 = 25:41 -15.591.1 44x30 27x30 Plalebo 12---| 18 וד sms 1.5 18.59 = 19.41 Che square x2 = Ź COPPER staffs he can be computed by, Coo-€9)2 tomt PPL Ep lot De = (32 – 25.417°+ (9-15.59)2 +(2-18.59) 15.59 18.59 4 + (18-11-40) 2:21 boliger 11.41 stop 25.41 43.4281 43.4281, 43.4281 43 25.41 0 15.59. S. 18.59 #43.4281 11:41 = 1.7091 + 2:7856+ 2.33 61 + 3.8061 > 10.64 % 10.643. So correct answees en