A random sample of size n = 144 yielded p = .76. a. Is the sample size
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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 the full answer
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