A random sample of size n = 225 yielded a p? = 0.46 a. Is the sample size large enough to construct a confidence interval for p? Explain. b. Construct a 95% confidence interval for p c. Interpret the 95% confidence interval.
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Check if the sample size is large enough: We need to ensure that both np and n(1-p) are greater than or equal to 10. np = 225 * 0.46 = 103.5 n(1-p) = 225 * (1 - 0.46) = 121.5 Since both values are greater than 10, the sample size is large enough to construct a Show more…
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