Question: A random sample of size n = 121 yielded p = .88. a. Is the sample size large enough to use the methods of this

A random sample of size n = 121 yielded p̂ = .88.
a. Is the sample size large enough to use the methods of this section to construct a confidence interval for p? Explain.
b. Construct a 90% confidence interval for p.
c. What assumption is necessary to ensure the validity of this confidence interval?

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a The sample size is large enough if both np 15 and nq 15 n... View full answer

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