Assume that a sample is used to estimate a population proportion p. Find the 99.9% confidence interval for a sample of size 353 with 27% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.I. =

Tina catches a 14-pound bass.  She does not know the population mean or standard deviation.  So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds.  Find the t and calculate a 95% (α = .05) confidence interval.

Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval for a sample of size 392 with 102 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. 80% C.I. =

Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval for a sample of size 172 with 32% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.I. =

Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval for a sample of size 379 with 120 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.C.I. =

Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 331 with 182 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.C.I. =

Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 309 with 71 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.I. =

Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 119 with 93 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.I. =

Assume that a sample is used to estimate a population proportion p. Find the 99.9% confidence interval for a sample of size 367 with 32% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.I. =

Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96