Question

Clinical trials involved treating patients with Tamiflu, which is a medicine intended to attack the influenza virus and stop it from causing flu symptoms. Among 895 patients treated with Tamiflu, 121 experienced nausea as an adverse reaction. Use a significance level of 0.05 to test the claim that the rate of nausea experienced by patients who were given Tamiflu is higher than the 6% rate experienced by flu patients who were given a placebo.

Answer 1

Hypotheses:

Ho: p = 0.06

Ha: p > 0.06 [Right Tailed Test]

Sample proportion = 121/895 = 0.1352

Test statistic

z = 9.47

p - Value = P(z > 9.47) = 0.000

Since p - value is less than 0.05 significance level, we reject the null hypothesis. Hence,

There is sufficient evidence that the rate of nausea experienced by patients who were given Tamiflu is higher than the 6% rate experienced by flu patients who were given a placebo.