A 98% confidence interval for a population proportion is given as 0.531 < p < 0.693. Round your answers to 3 decimal places.
(a) Calculate the sample proportion.
p̂ =
(b) Calculate the margin of error.
E =
A 98% confidence interval for a population proportion is given as 0.531 < p < 0.693....
Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best point estimate for p , the margin of error, and the confidence interval. Assume the results come from a random sample. A 95% confidence interval for the proportion of the population in Category A given that 18% of a sample of 450 are in Category A. Round your answer for the point estimate to two decimal places, and your...
A 98% confidence interval for a population mean is given as 31.4 < μ < 40.8. Round your answers to 1 decimal place. (a) Calculate the sample mean. x = (b) Calculate the margin of error.
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