Question: A random sample of size n = 144 yielded p = .76. a. Is the sample size large enough to use the methods of this

A random sample of size n = 144 yielded p̂ = .76.

a. Is the sample size large enough to use the methods of this section to construct a confidence interval for p̂? 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 b np 144... View full answer

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