SOLUTION: In a clinical trial, 34 out of 850 patients taking a prescription drug complained of flulike symptoms. Suppose that it is known that 2.8% of patients taking competing drugs complai

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Question 1077569: In a clinical trial, 34 out of 850 patients taking a prescription drug complained of flulike symptoms. Suppose that it is known that 2.8% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 2.8% of this drug's users experience flulike symptoms as a side effect at the α=0.1 level of significance?
(a) 1.) what are the null and alternative hypotheses?
H0:p _ _ versus H1:p _ _
2. what is the P-value?
3.) choose the correct answer:
Since P-value >α, reject the null hypothesis and conclude that there
Is not sufficient evidence that more than 2.8% of the users experience flulike symptoms.

B.
Since P-valuele
C.
Since P-value <α reject the null hypothesis and conclude that there is sufficient evidence that more than 2.8% of the users experience flulike symptoms.

D.
Since P-value>α, do not rejectdo not reject the null hypothesis and conclude that there is not
sufficient evidence that more than 2.8% of the users experience flulike symptoms.

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Ho p<=0.028
Ha p>0.028
alpha is 0.1
test stat is one sample proportion z-test
critical value z>1.28
z=(0.04-0.028)/SE; SE is sqrt {(p*(1-p))/n}=sqrt (.028*0.972/850}=0.0057
z=0.012/0.0057=2.12
reject Ho, there is sufficient evidence that greater than 2.8% exhibit flu-like symptoms.
p-value is 0.017