Question

n TULUIC. JU2JXU13 U12 PES 8.2.13-T Question Help Suppose 215 subjects are treated with a drug that is used to treat pain and 52 of them developed nausea. Use a 0.01 significance level to test the daim that more than 20% of users develop nausea A. Ho: p=0.20 H:p>0.20 OB. Ho p=0.20 Hyp<0.20 Oc. Họ p> 0 20 H, p=0.20 OD. Ho: p=0.20 Hyp#020 Identify the test statistic for this hypothesis test The test statistic for this hypothesis test is (Round to two decimal places as needed) Enter your answer in the answer box and then click Check Answer Check Am Clear All 2 parts remaining ere to search 9 w

Answer 1

Solution:

Ho:p=0.2

Ha:p>0.2

alpha=0.01

Test statistic

Z=p^-p/sqrt(p*(1-p)/n)

p^=x/n=52/215=0.2418605

z=(0.2418605-0.20)/sqrt(0.2*(1-0.2)/215))

z= 1.534489

z=1.53

p value in excel

=NORM.S.DIST(-1.534489,TRUE)

=0.062454699

p>0.01

Fail to reject Ho

No suffcient evidence at 1% level of significance to support the claim.

ANSWER:

test statisitc,z=1.53