Use the confidence interval to find the margin of error and the sample mean. (0.196,0.300) The margin of error is

Use the confidence interval to find the margin of error and the sample mean. (1.54,1.88) The margin of error is 0.17. (Round to two decimal places as needed.) The sample mean is. (Type an integer or a decimal.)

n= 1655 (nubers of tries), x=176 (number of success tries), 98% confidence. Find the confidence interval estimate of the population proportion p.

Construct a confidence interval for the population mean.  Assume that the population has a normal distribution.  n= 30, x bar = 84.6, s=10.5, 90% confidence.

Use the confidence interval to find the margin of error and the sample mean. (0.346,0.450) The margin of error is The sample mean is 9 五 0 SF10

A poll of 2612 U.S. adults found that 15% regularly used Facebook as a news source. Find the margin of error and confidence interval for the percentage of U.S. adults who regularly use Facebook as a news source, at the 90% level of confidence. Round all answers to 2 decimal places. Margin of Error (as a percentage): Confidence Interval: _______% to ______% Find the margin of error and confidence interval for the percentage of U.S. adults who regularly use Facebook as a news source, at the 95% level of confidence. Round all answers to 2 decimal places. Margin of Error (as a percentage): Confidence Interval: ________% to ________% Find the margin of error and confidence interval for the percentage of U.S. adults who regularly use Facebook as a news source, at the 99% level of confidence. Round all answers to 2 decimal places. Margin of Error (as a percentage): Confidence Interval: ________% to ______% The more error we allow, the less precise our estimate. Therefore, as the confidence…

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (4.2,5.4) when estimating the mean height (in centimeters) of a sample of seedlings. The estimated margin of error is The sample mean is Search 6 17 + & 87 lyn 8 9 DYWAN DDI 8 0 0 0

statistics practitioner took a random sample of 48 observations from a population whose standard deviation is 23 and computed the sample mean to be 100.   Note: For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence limits.   A. Estimate the population mean with 95% confidence.   Confidence Interval =  B. Estimate the population mean with 95% confidence, changing the population standard deviation to 47;   Confidence Interval =  C. Estimate the population mean with 95% confidence, changing the population standard deviation to 10;   Confidence Interval =

What is the P(t >  -1.8) with a sample size of 10.

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (1.9.3.1) when estimating the mean height (in centimeters) of a sample of seedlings. The estimated margin of error is The sample mean is