Estimate the minimum sample size needed to achieve the margin of error E=0.023 for a 95% confidence interval.
Estimate the minimum sample size needed to achieve the margin of error E=0.023 for a 95%...
Estimate the minimum sample size needed to achieve the margin of error E equals= 0.015 for a 95% confidence interval. Round to the nearest integer.
Find an estimate of the sample size needed to obtain a margin of error of 33 for the 95% confidence interval of a population mean, given a sample standard deviation of 400. Do not round until the final answer O A 3 OB, 19,394 OC. 24 OD. 588
What sample size is needed to obtain a 95% confidence interval whose margin of error is no more than 1.7 for the mean of a normal population with standard deviation 4.5?
Determine the sample size needed to construct a 95% confidence interval to estimate the average GPA for the student population at a college with a margin of error equal to 0.2. Assume the standard deviation of the GPA for the student population is 25 The sample size needed is (Round up to the nearest integer.) Determine the sample size n needed to construct a 90% confidence interval to estimate the population proportion for the following sample proportions when the margin...
Determine the sample size n needed to construct a 95% confidence interval to estimate the population mean when sigma equals 49 and the margin of error equals 6. n=????
Find the minimum sample size required to estimate a population proportion with a margin of error equal to .04 and a confidence level of 90%. A recent study resulted in a sample proportion of .70. ALSO determine the minimum sample size if no prior study was done.
Determine the sample size needed in forming a 95% confidence interval for a proportion with margin of error of 0.04. (Use the “safe approach” for the population proportion (i.e., p=.50) Repeat part a.) for a margin of error of 0.02.
Determine the margin of error for a 95% confidence interval to estimate the population mean when s=37 for the sample sizes below. Solve for c) n=46. htmathe Student Homework Theme =41778etod y FALL 2019 STAT 3309 CRN 120961 Homework: Section 8.3 Confidence intervals with s Homework Score: 0 57 of 1 pt 28.3.22-T Determine the margin of error for a 95% confidence interval to estimate the E a) n. 13 b) n = 30 c) n46 a) The margin of...
Determine the minimum sample size n needed to estimate μ given that the confidence level is 90%, the population standard deviation is 6.8, and the margin of error is 1. Show complete solutions. Round up your answer to the nearest whole number.
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...