Question

Suppose 231 subjects are treated with a drug that is used to treat pain and 51 of the developed nausea. Use a 0.05 significance level to test the claim that more than 20% of users develop nausea. Identify the nul and alternative hypotheses for this test. Choose the correct answer below O A. Ho:p0.20 Hyp<0.20 OB. Ho p0.20 Hyp>0.20 OCHOD=0.20 Hp0.20 OD. Ho:p>0.20 HD=0.20 Identify the best statistic for this hypothesis test The best statistic for this hypothesis ostis

Answer 1

Solution Given n = 51 n: 231 دم - 0.2208 23/ than 20% of use95 claim that more develop nausea No11 hypothesis Hip : 0.20 Alternatre hypothesis HP >0.20 Toption e) is correct م - مر best stabstes Now, Z PG-M 0.2208 0,20 1) 0. 20 X 0.80 23/ 0.0208 - 0,0 263 O, 7909 12 2 = 0, 2909

P value (2 with p(230, 7909) : 1-PC2C 0.7909) :/-0, 7855 : 0.2145 P=0.2145 If, Pca Dreject Ho or p zx, fail to reject to here p > L. fail to reject to not we conclude that Here is sufficient Cuidence to warrant suppoot of claim that move than 20 % of users develop nausea opborn 07 ©