in a clinical trial, 25 out of 852 patients taking a prescription drug daily complained of...

in a clinical trial, 25 out of 852 patients taking a prescription drug daily complained of flulike symptoms. Suppose that is it known that 2.5% of patients taking competing drugs complain of flulike symptoms. is there enough evidence to conclude that more than 2.5% of this drugs users experience flulike symptoms as a side effect at the 0.1 level of significance?

Expert Solution

Null hypothesis

Alternative hypothesis

We have for given example,
Population proportion value is =0.025
x=25

n=852
Level of significance =   0.1
Estimate for sample proportion

Z test statistic formula for proportion

=0.812

P value is = 0.2084..........................by using Excel command 1-NORMSDIST(0.812)

P value = 0.2084 > 0.10

Therefore, we fail to reject H0 at

We do have sufficient evidence at to say that, more than 2.5% of this drugs users experience flu like symptoms as a side effect.

milcah answered 2 years ago

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