SOLUTION: In a clinical trial, 19 out of 800 patients taking a prescription drug complained of flulike symptoms. Suppose that it is known that 1.7% of the patients taking competing drugs com

Question 903025: In a clinical trial, 19 out of 800 patients taking a prescription drug complained of flulike symptoms. Suppose that it is known that 1.7% of the patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 1.7% of this drug's users experience flulike symptoms as a side effect at the a=0.05 level of significance?
(a) what are the null and alternative hypothesis?
(b) Use technology to find the p-valve
Please help with this. I am struggling with this course. I need to see the work to understand what I am doing. The instructor is not much help. Thanks!
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Ho: p = 0.017
Ha: p > .017
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sample proportion = p-hat = 19/800 = 0.02375
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test stat:: z(0.02375) = (.024-.017)/sqrt[0.017*0.983/800] = .007/.00457 = 1.53
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p-value = P(z > 1.53) = 1 - P(z<1.53) = 1 - .94 = .06
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Conclusiion:
Since the p-value is greater than 5%, accept Ho.
there is not sufficient evidence to conclude that more than 1.7% results

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