Question

In a clinical trial, 23 out of 844 patients taking a prescription drug daily complained of flu-like symptoms. Suppose that it is known that 2.2% of patients taking competing drugs complain of flu-like symptoms. Is there sufficient evidence to conclude that more than 2.2% of this drug's users experience flu-like symptoms as a side effect at the α=0.1 level of significance? A- Because np0(1−p0) > 10, the sample size is less than 5% of the population size, and the sample can be reasonably assumed to be random, the requirements for testing the hypothesis are satisfied. b- What are the null and alternative hypotheses? H0: p = 0.022 versus H1: p > 0.022 c- Find the test statistic, z0. z0 = 1.05 (Round to two decimal places as needed.) Find the P-value. P-value = 0.147 (Round to three decimal places as needed.)

          In a clinical trial, 23 out of 844 patients taking a prescription drug daily complained of flu-like symptoms. Suppose that it is known that 2.2% of patients taking competing drugs complain of flu-like symptoms. Is there sufficient evidence to conclude that more than 2.2% of this drug's users experience flu-like symptoms as a side effect at the α=0.1 level of significance?

A- Because np0(1−p0) > 10, the sample size is less than 5% of the population size, and the sample can be reasonably assumed to be random, the requirements for testing the hypothesis are satisfied.

b- What are the null and alternative hypotheses?
H0: p = 0.022 versus H1: p > 0.022

c- Find the test statistic, z0.
z0 = 1.05
(Round to two decimal places as needed.)

Find the P-value.
P-value = 0.147
(Round to three decimal places as needed.)

Added by Andrea S.

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