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# decreasing her sample size B. decreasing her confidence level C. decreasing her sample proportion D. All of the above would decrease the width of...

A. decreasing her sample size B. decreasing her confidence level C. decreasing her sample proportion D. All of the above would decrease the width of her interval. Which of the following could help her make her confidence interval narrower? A. decreasing her sample size B. decreasing her confidence level C. decreasing her sample proportion D. All of the above would decrease the width of her interval. E. Two of the above would decrease the width of her interval. A 95% confidence interval for population proportion p of (0.78, 0.94)? A. There is a 95% probability that p is between 0.78 and 0.94. B. In repeated sampling, p will fall between 0.78 and 0.94 about 95% of the time. C. In repeated sampling, the confidence intervals will contain p about 95% of the time. D. In repeated sampling, the confidence intervals will contain p about 95% of the time. E. None of the above.