6.43 A random sample of size n = 225 yielded p? = .46. 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 95% confidence interval for p. c. Interpret the 95% confidence interval. d. Explain what is meant by the phrase "95% confidence interval."
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Yes, the sample size is large enough to construct a confidence interval for p. The rule of thumb is that the sample size should be at least 30 for the Central Limit Theorem to hold, and in this case, n = 225 which is much larger than 30. b. Show more…
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