Question

Acertain drug is used to treat asthma. In a clinical trial of the drug, 29 of 260 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that loss than 11% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance levello complete parts (a) through () below. Properest prop<0.11 20.075203346 0.5315963737 a. Is the lost two-tailed, loft-tailed, or right-tailed? Loft-tailed test Two-tailed fost O right tailed test b. What is the test statistic? 2 (Round to two decimal places as needed.) What is the way Click to select your answer(s).

Answer 1

colucation: Page 1 given that it n=260 x=29 droog- - Payn a 29/260 = 0.115 gune a ] The test neft-tailed in • Left -tailed test. Hot p=o.ll x5 HP <0.11 - b] The test statistic? 2= P :P o 1115-0'll Tonxoey Oil) * o.89 260 0.0015, it ooolg4. z 200079 o the p value or we know that no 1079, one failed using Re Softwrace, command Pavalue a prom( -abs-c 0.079))

payer2 P- vellue = 0.5315 a hypothesis and conclude The Nuin about it. B. Ho proill Conclusion Prvalue & a it reject to 0.5315-70.05 fail to Reject Ha 3 we A fail to Reject the Null typothesis- because the p-value is greatle Than the Stonificance level a