Question
In: Statistics and Probability
In a trial of Pfizer’s new math-anxiety-reducing drug, a random sample of 100 students yielded 58...
In a trial of Pfizer’s new math-anxiety-reducing drug, a random sample of 100 students yielded 58 who showed significant improvement. Construct a 92% confidence interval for π, the population proportion of all students who would be helped by the drug. (Round to two decimals places)
Solutions
Expert Solution
We have given here,
x=58
n=100
Estimate for sample proportion
Level of significance is =1-0.92=0.08
Z critical value(using Z table)=1.751
|
Therefore, 92% confidence interval for population proportion is =(0.49, 0.67) |
orchestra answered 1 year agoRelated Solutions
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