If n=640 and ^pp^(p-hat) =0.8. Construct a 98% confidence interval. Given your answer to 3 decimal....
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If n=640 and ^pp^(p-hat) =0.8.
Construct a 98% confidence interval.
Given your answer to 3 decimal....
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- A sample of 1100 observations taken from a population produced a sample proportion of 0.38. Make a 90 % confidence interval for Round your answers to three decimal places. = ( ) to ( )Asample of 14 ramdomly selected commuters in Chicago showed the average of the commuting times was 33.2 minutes. if the standard deviation was 8.3 minutes, find the confidence interval of the true mean.According to a study, 1156 out of 7730 adults said that they would ask their siblings first in case they need an emergency loan. Using these data, construct a 90% confidence interval. Also find the margin of error. Round your answers to 3 decimal places.
- A local health centre noted that in a sample of 400 patients, 80 were referred to them by the local hospital. Provide a 95% confidence interval for all the patients who are referred to the health centre by the hospital. 2. What sample size would be required to estimate the proportion of all hospital referrals to the health centre with a margin of error of 0.04 or less at 95% confidence?A food snack manufacturer samples 9 bags of pretzels off the assembly line and weighs their contents. If the sample mean is 15.2 oz. and the sample standard deviation is 0.50 oz., find the 95% confidence interval of the true mean.If n=240 and X = 192, construct a 90% confidence interval. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.Confidence interval =