Homework Answers
The sample size calculation will require:
Confidence level, maximum allowable error, standard deviation
Option A is correct.
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To determine an appropriate sample size to obtain from a population, what must be considered? O...
Find an estimate of the sample size needed to obtain a margin of error of 33...
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
Determine - and o- from the given parameters of the population and the sample size. Round...
Determine - and o- from the given parameters of the population and the sample size. Round the answer to the nearest thousandth where appropriate =38, o=8, n=13 O A. H;=21.939, 0;=2.219 O B. H=38, = 2.219 OC. H=38,0 = 8 OD. H=38, -=0.615
o be 4.5. A simple random sample of size n is drawn. The sample mean, X,...
o be 4.5. A simple random sample of size n is drawn. The sample mean, X, is found to be 17.9, and the sample standard deviation, s, is found Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about H if the sample size, n, is 35. Lower bound: Upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about if the sample...
A simple random sample of size n is drawn. The sample mean, x, is found to...
A simple random sample of size n is drawn. The sample mean, x, is found to be 19.4, and the sample standard deviation, s, is found to be 4.9. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about if the sample size, n, is 35. Lower bound: :Upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about if the sample size,...
is found to be 10 A simple random sample of size nis drawn from a population that is normally distributed. The sam...
is found to be 10 A simple random sample of size nis drawn from a population that is normally distributed. The sample mean is found to be 112, and the sample standard deviation (a) Construct a 90% confidence interval about the sample sen, 29. (b) Construct a 96confidence interval about if the sample size is 11 (c) Construct a 70% condence interval about the sample sen, 29. (d) Could we have computed the confidence intervals in parts (He) if the...
A simple random sample of size n is drawn. The sample mean, x, is found to...
A simple random sample of size n is drawn. The sample mean, x, is found to be 19.2, and the sample standard deviation, s, is found to be 4.9. Click the icon to view the table of areas under the t-distribution (a) Construct a 95% confidence interval about ju if the sample size, n, is 34. Lower bound: upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about u if the...
A simple random sample of size n is drawn. The sample mean, x, is found to...
A simple random sample of size n is drawn. The sample mean, x, is found to be 19.4, and the sample standard deviation, s, is found to be 4.9. Click the icon to view the table of areas under the t-distribution. OC. The margin of error decreases. (c) Construct a 99% confidence interval about if the sample size, n, is 35. Lower bound: 17.14; Upper bound: 21.66 (Use ascending order. Round to two decimal places as needed.) Compare the results...
A simple random sample of size n is drawn. The sample mean, X, is found to...
A simple random sample of size n is drawn. The sample mean, X, is found to be 17.9, and the sample standard deviation, s, is found to be 4.8. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about us if the sample size, n, is 34. Lower bound: upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about if the sample...
A simple random sample of size n is drawn. The sample mean, , is found to...
A simple random sample of size n is drawn. The sample mean, , is found to be 19.2, and the sample standard deviation, s, is found to be 4.6. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about u if the sample size, n, is 35. Lower bound: I; Upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about u if...
simple random sample of size nis drawn. The sample mean, X, is found to be 18.3,...
simple random sample of size nis drawn. The sample mean, X, is found to be 18.3, and the sample standard deviations, is found to be 4.7 Click the icon to view the table of areas under the distribution a) Construct a 95% confidence interval about if the sample size, n, is 35 Lower bound: 16,60 Upper bound: 19.92 Use ascending order. Round to two decimal places as needed.) b) Construct a 95% confidence interval about if the sample size, n,...
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
Determine - and o- from the given parameters of the population and the sample size. Round the answer to the nearest thousandth where appropriate =38, o=8, n=13 O A. H;=21.939, 0;=2.219 O B. H=38, = 2.219 OC. H=38,0 = 8 OD. H=38, -=0.615
o be 4.5. A simple random sample of size n is drawn. The sample mean, X, is found to be 17.9, and the sample standard deviation, s, is found Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about H if the sample size, n, is 35. Lower bound: Upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about if the sample...
A simple random sample of size n is drawn. The sample mean, x, is found to be 19.4, and the sample standard deviation, s, is found to be 4.9. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about if the sample size, n, is 35. Lower bound: :Upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about if the sample size,...
is found to be 10 A simple random sample of size nis drawn from a population that is normally distributed. The sample mean is found to be 112, and the sample standard deviation (a) Construct a 90% confidence interval about the sample sen, 29. (b) Construct a 96confidence interval about if the sample size is 11 (c) Construct a 70% condence interval about the sample sen, 29. (d) Could we have computed the confidence intervals in parts (He) if the...
A simple random sample of size n is drawn. The sample mean, x, is found to be 19.2, and the sample standard deviation, s, is found to be 4.9. Click the icon to view the table of areas under the t-distribution (a) Construct a 95% confidence interval about ju if the sample size, n, is 34. Lower bound: upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about u if the...
A simple random sample of size n is drawn. The sample mean, x, is found to be 19.4, and the sample standard deviation, s, is found to be 4.9. Click the icon to view the table of areas under the t-distribution. OC. The margin of error decreases. (c) Construct a 99% confidence interval about if the sample size, n, is 35. Lower bound: 17.14; Upper bound: 21.66 (Use ascending order. Round to two decimal places as needed.) Compare the results...
A simple random sample of size n is drawn. The sample mean, X, is found to be 17.9, and the sample standard deviation, s, is found to be 4.8. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about us if the sample size, n, is 34. Lower bound: upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about if the sample...
A simple random sample of size n is drawn. The sample mean, , is found to be 19.2, and the sample standard deviation, s, is found to be 4.6. Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about u if the sample size, n, is 35. Lower bound: I; Upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about u if...
simple random sample of size nis drawn. The sample mean, X, is found to be 18.3, and the sample standard deviations, is found to be 4.7 Click the icon to view the table of areas under the distribution a) Construct a 95% confidence interval about if the sample size, n, is 35 Lower bound: 16,60 Upper bound: 19.92 Use ascending order. Round to two decimal places as needed.) b) Construct a 95% confidence interval about if the sample size, n,...
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