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.
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.
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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.
Use the given margin of error, confidence level, and population standard deviation, sigmaσ, to find the...
Use the given margin of error, confidence level, and population standard deviation, sigmaσ, to find the minimum sample size required to estimate an unknown population mean, muμ. Margin of error: 1.91.9 inches, confidence level: 9595%, sigmaσequals=2.62.6 inches A confidence level of 9595% requires a mimimum sample size of nothing. (Round up to the nearest integer.)
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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...
6.1.31 Question Help | * Find the minimum sample size n needed to estimate μ for...
6.1.31 Question Help | * Find the minimum sample size n needed to estimate μ for the given values of c, σ, and E. cz 0.98, ơ-7.7, and E: 1 Assume that a preliminary sample has at least 30 members. n(Round up to the nearest whole number.) 6.1.47 Question Help People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book...
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What is the minimum sample size required to estimate a population mean with 90% confidence if the population standard deviation is estimated to be 30 and the desired margin of error is 2?
Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100...
Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100 A 95% confidence interval for μ is OD (Round to one decimal place as needed.) 6.1.27 Use the confidence interval to find the margin of error and the sample mean (1.58,2.06) The margin of error is (Round to two decimal places as needed) 6.1.31 Find the minimum sample size n needed to estimate μ for the given values of c, o, and E. cz...
Determine the sample size n needed to construct a 99% confidence interval to estimate the population...
Determine the sample size n needed to construct a 99% confidence interval to estimate the population mean when σ=87 and the margin of error equals 12. n =___(Round up to the nearest integer.)
Use the confidence interval to find the margin of error and the sample mean. (1.76,2.00) The...
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 )
Determine the point estimate of the population proportion, the margin of error for the following confidence...
Determine the point estimate of the population proportion, the margin of error for the following confidence interval, and the number of individuals in the sample with the specified characteristic, x, for the sample size provided. Lower bound = 0.460, upper bound = 0.710, n= 1200 The point estimate of the population proportion is (Round to the nearest thousandth as needed.) The margin of error is (Round to the nearest thousandth as needed.) The number of individuals in the sample with...
Determine the sample size n needed to construct a 90% confidence interval to estimate the population proportion when p = 0.65 and the margin of error equals 7%. n= (Round up to the nearest integer.)
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...
6.1.31 Question Help | * Find the minimum sample size n needed to estimate μ for the given values of c, σ, and E. cz 0.98, ơ-7.7, and E: 1 Assume that a preliminary sample has at least 30 members. n(Round up to the nearest whole number.) 6.1.47 Question Help People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book...
Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error: 0.01; confidence level 90%; p and ĝ unknown n= (Round up to the nearest integer.)
Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100 A 95% confidence interval for μ is OD (Round to one decimal place as needed.) 6.1.27 Use the confidence interval to find the margin of error and the sample mean (1.58,2.06) The margin of error is (Round to two decimal places as needed) 6.1.31 Find the minimum sample size n needed to estimate μ for the given values of c, o, and E. cz...
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 )
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