A population has a mean of 300 and a standard deviation of 70. Suppose a sample...
A population has a mean of 300 and a standard deviation of 70. Suppose a sample of size 125 is selected and (x-bar) is used to estimate (mu) . Use z-table.
A. What is the probability that the sample mean will be within +/- 8 of the population mean (to 4 decimals)?
B. What is the probability that the sample mean will be within +/- 16 of the population mean (to 4 decimals)?
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A population has a mean of 300 and a standard deviation of 70.
Suppose a sample...
A population has a mean of 300 and a standard deviation of 70. Suppose a sample...
A population has a mean of 300 and a standard deviation of 70. Suppose a sample of size 100 is selected and is used to estimate What is the probability that the sample mean will be within +/- 3 of the population mean (to 4 decimals)? What is the probability that the sample mean will be within +/- 12 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.)
A population has a mean of 200 and a standard deviation of 70, Suppose a sample...
A population has a mean of 200 and a standard deviation of 70, Suppose a sample of size 125 is selected and z is used to estimate μ. Use z-table a. What is the probability that the sample mean will be within :5 of the population mean (to 4 decimals)? 5762 b. What is the probability that the sample mean will be within t12 of the population mean (to 4 decimals)? 9474
A population has a mean of 200 and a standard deviation of 60. Suppose a sample...
A population has a mean of 200 and a standard deviation of 60. Suppose a sample of size 125 is selected and x-bar is used to estimate µ . Use z-table. a.) What is the probability that the sample mean will be within ±3 of the population mean (to 4 decimals)? b.) What is the probability that the sample mean will be within ±14 of the population mean (to 4 decimals)?
A population has a mean of 200 and a standard deviation of 90. Suppose a sample...
A population has a mean of 200 and a standard deviation of 90. Suppose a sample of size 100 is selected and X-Bar is used to estimate. Use z-table. A. What is the probability that the sample mean will be within +/- 9 of the population mean (to 4 decimals)? B. What is the probability that the sample mean will be within +/- 16 of the population mean (to 4 decimals)?
A population has a mean of 300 and a standard deviation of 60. Suppose a sample...
A population has a mean of 300 and a standard deviation of 60. Suppose a sample of size 100 is selected and is used to estimate . Use z-table. What is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? What is the probability that the sample mean will be within +/- 12 of the population mean (to 4 decimals)?
A population has a mean of 300 and a standard deviation of 80. Suppose a sample...
A population has a mean of 300 and a standard deviation of 80. Suppose a sample of size 10 is selected and x̅ is used to estimate . Use z-table. a. What is the probability that the sample mean will be within +/-4 of the population mean (to 4 decimals)? b. What is the probability that the sample mean will be within +/- 13of the population mean (to 4 decimals)?
A population has a mean of 400 and a standard deviation of 90. Suppose a sample...
A population has a mean of 400 and a standard deviation of 90. Suppose a sample of size 100 is selected and x with bar on top is used to estimate mu. What is the probability that the sample mean will be within +/- 3 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.) What is the probability that the sample mean will be within +/- 14 of the population mean (to...
a population has a mean of 200 and a standard deviation of 60. suppose a sample...
a population has a mean of 200 and a standard deviation of 60. suppose a sample of size is 100 is selected and sample mean is used to estimate the mean. Use z table. a. what is the probability that the sample mean will be within +/-7 of the population mean (to 4 decimals) b. what is the probability that the sample mean will be within +/-16 of the population mean (to 4 decimals) round z value in intermediate calculations...
A population has a mean of 400 and a standard deviation of 50. Suppose a sample...
A population has a mean of 400 and a standard deviation of 50. Suppose a sample of size 100 is selected and I is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +9 of the population mean (to 4 decimals)? b. What is the probability that the sample mean will be within +13 of the population mean (to 4 decimals)? A population proportion is 0.3. A sample of size 300...
A population has a mean of 300 and a standard deviation of 80. Suppose a sample...
A population has a mean of 300 and a standard deviation of 80. Suppose a sample size 100 is selected and is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.) .55 b. What is the probability that the sample mean will be within +/- 11 of the population mean (to 4...
A population has a mean of 200 and a standard deviation of 70, Suppose a sample of size 125 is selected and z is used to estimate μ. Use z-table a. What is the probability that the sample mean will be within :5 of the population mean (to 4 decimals)? 5762 b. What is the probability that the sample mean will be within t12 of the population mean (to 4 decimals)? 9474
A population has a mean of 400 and a standard deviation of 50. Suppose a sample of size 100 is selected and I is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +9 of the population mean (to 4 decimals)? b. What is the probability that the sample mean will be within +13 of the population mean (to 4 decimals)? A population proportion is 0.3. A sample of size 300...
A population has a mean of 300 and a standard deviation of 80. Suppose a sample size 100 is selected and is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +/- 5 of the population mean (to 4 decimals)? (Round z value in intermediate calculations to 2 decimal places.) .55 b. What is the probability that the sample mean will be within +/- 11 of the population mean (to 4...
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