Use the confidence interval to find the margin of error and the sample mean. (0.362,0.540) The...
6.1.25 Use the confidence interval to find the margin of error and the sample mean. (0.352,0.470) The margin of error is 0.059 The sample mean is Enter your answer in the answer box and then click Check Answer
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (4.1.5.3) when estimating the mean height (in centimeters) of a sample of seedlings. The estimated margin of error is The sample mean is
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (4.1.5.3) when estimating the mean height (in centimeters) of a sample of seedlings. The estimated margin of error is The sample mean is
use the confidence interval to find the margin of error and the sample mean. (0.126, 0.270). The margin of error is ? The sample mean is?
Use the confidence interval to find the margin of error and the sample mean. ( 1.70, 2.00 )
Use the confidence interval to find the margin of error and the sample mean. (1.76,2.00) The margin of error is □ Round to two decimal places as needed.) The sample mean is Type an integer or a decimal.) Find the minimum sample size n needed to estimate μ for the given values of c. and E. cz 0.90, ơ 7.9, and E-2 Assume that a preliminary sample has at least 30 members. n-Round up to the nearest whole number )
1. Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (4.0, 4.8) when estimating the mean height (in centimeters) of a sample of seedlings. 2. In a random sample of 26 people, the mean commute time to work was 32.2 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the...
Use the given confidence interval to find the margin of error and the sample mean. (14.6,23.8)
Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 92, with a sample size of (a) 400,(b) 1800. What is the effect of the sample size? 2. The margin of error for a 95% confidence interval with a sample size of 400 is (Round to the nearest tenth as needed.) b. The margin of error for a 90% confidence interval with a sample size of 1600 is (Round...
Use the t-distribution to find a confidence interval for a mean given the relevant sample results. Give the best point estimate for the margin of error, and the confidence interval. Assume the results come from a random sample from a population that is approximately normally distributed A 90% confidence interval for using the sample results T = 2.9.5 = 0.3, and n = 100 Round your answer for the point estimate to one decimal place, and your answers for the...