Question
A random sample of n = 80 yielded p̂ = 0.25. a. Is the sample size...
A random sample of n = 80 yielded p̂ = 0.25.
a. Is the sample size large enough to use the large sample approximation to construct a confidence interval for p? Explain.
b. construct a 90% confidence interval for p.
c. interpret the 90% confidence interval for p.
d. explain what is meant by the phrase "90% confidence interval."
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