A random sample of 30 hotels and motels on a given Sunday in Monterey found the...
A random sample of 30 hotels and motels on a given Sunday in Monterey found the mean to be $100 with population standard deviation $30. Find a 90% confidence interval for the true mean
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A random sample of 30 hotels and motels on a given Sunday in
Monterey found the...
In a hospital, a random sample of 10 weeks was selected, and it was found that...
In a hospital, a random sample of 10 weeks was selected, and it was found that an average of 495 patients were treated in the emergency room each week. The population standard deviation was 23. Find the 90% confidence interval of the true mean. Assume the variable is normally distributed. (Show Work)
2) In a hospital, a random sample of 12 weeks was selected, and it was found...
2) In a hospital, a random sample of 12 weeks was selected, and it was found that an average sample of 537 patients were treated in the emergency room each week. The standard deviation was 21.82. Assuming that the variable is normally distributed, find the 90% confidence interval of the true mean. 90% confidence interval:
You take a sample of 30 items and obtain a sample mean of 15 and...
You take a sample of 30 items and obtain a sample mean of 15 and a sample standard deviation of 5 Construct a 95% confidence interval about the mean Construct a 99% confidence interval about the mean If I took 100 different samples of 30 items from a given population and obtained 100 different sample means and standard deviations and formed 100 90% confidence intervals, then about how many of the confidence intervals formed from these...
2. A simple random sample of size n is drawn. The sample mean I is found...
2. A simple random sample of size n is drawn. The sample mean I is found to be 53.1, and the sample standard deviation s is found to be 7.8 a) (3 points) Construct a 95% confidence interval for the population mean u if the sample size n is 81. b) (3 points) Construct a 95% confidence interval for the population mean u if the sample size n is 30. c) (3 points) Construct a 90% confidence interval for the...
10. A simple random sample of size n is drawn. The sample mean x is found...
10. A simple random sample of size n is drawn. The sample mean x is found to be 39.1, and the sample standard deviation s is found to be 9.7. a) (2 points) Construct a 90% confidence interval for the population mean u if the sample size n is 41. b) (2 points) Construct a 90% confidence interval for the population mean y if the sample size n is 101. c) (2 points) Construct a 99% confidence interval for the...
10. A simple random sample of size n is drawn. The sample mean x is found...
10. A simple random sample of size n is drawn. The sample mean x is found to be 39.1, and the sample standard deviation s is found to be 9.7. a) (2 points) Construct a 90% confidence interval for the population mean w if the sample size n is 41. b) (2 points) Construct a 90% confidence interval for the population mean 4 if the sample size n is 101. c) (2 points) Construct a 99% confidence interval for the...
A simple random sample of 40 items resulted in a sample mean of 30. The population...
A simple random sample of 40 items resulted in a sample mean of 30. The population standard deviation is o = 15. a. Compute the 95% confidence interval for the population mean. Round your answers to one decimal place. b. Assume that the same sample mean was obtained from a sample of 90 items. Provide a 95% confidence interval for the population mean. Round your answers to two decimal places.
rom a population that is normally distributed. The sample mean is found to be x-69 and...
rom a population that is normally distributed. The sample mean is found to be x-69 and he sample standard deviation is found to be s-12. Construct a 90% confidence interval A simple random sample of size n-16 s drawn about the population mean. The 90% confidence interval is OD (Round to two decimal places as needed.)
13. A random sample is drawn from a population of known standard deviation 11.3. Construct a...
13. A random sample is drawn from a population of known standard deviation 11.3. Construct a 90% confidence interval for the population mean based on the information given (not all of the information given need be used). a. n-36, x =105.2, s=11.2 b. n-100, x =105.2, s - 11.2 14. A random sample is drawn from a population of unknown standard deviation. Construct a 99%99% confidence interval for the population mean based on the information given. a. n=49, x 17.1,...
7. Jose conducts a random sample of 41 people regarding their television viewing habits. He found...
7. Jose conducts a random sample of 41 people regarding their television viewing habits. He found that the sample mean was I = 4.615 hours per week with a sample standard deviation of s = 2.277 hours per week. Find a 90% confidence interval for the population mean. Nadide lines for ba t h ballot about
2) In a hospital, a random sample of 12 weeks was selected, and it was found that an average sample of 537 patients were treated in the emergency room each week. The standard deviation was 21.82. Assuming that the variable is normally distributed, find the 90% confidence interval of the true mean. 90% confidence interval:
2. A simple random sample of size n is drawn. The sample mean I is found to be 53.1, and the sample standard deviation s is found to be 7.8 a) (3 points) Construct a 95% confidence interval for the population mean u if the sample size n is 81. b) (3 points) Construct a 95% confidence interval for the population mean u if the sample size n is 30. c) (3 points) Construct a 90% confidence interval for the...
10. A simple random sample of size n is drawn. The sample mean x is found to be 39.1, and the sample standard deviation s is found to be 9.7. a) (2 points) Construct a 90% confidence interval for the population mean u if the sample size n is 41. b) (2 points) Construct a 90% confidence interval for the population mean y if the sample size n is 101. c) (2 points) Construct a 99% confidence interval for the...
10. A simple random sample of size n is drawn. The sample mean x is found to be 39.1, and the sample standard deviation s is found to be 9.7. a) (2 points) Construct a 90% confidence interval for the population mean w if the sample size n is 41. b) (2 points) Construct a 90% confidence interval for the population mean 4 if the sample size n is 101. c) (2 points) Construct a 99% confidence interval for the...
A simple random sample of 40 items resulted in a sample mean of 30. The population standard deviation is o = 15. a. Compute the 95% confidence interval for the population mean. Round your answers to one decimal place. b. Assume that the same sample mean was obtained from a sample of 90 items. Provide a 95% confidence interval for the population mean. Round your answers to two decimal places.
rom a population that is normally distributed. The sample mean is found to be x-69 and he sample standard deviation is found to be s-12. Construct a 90% confidence interval A simple random sample of size n-16 s drawn about the population mean. The 90% confidence interval is OD (Round to two decimal places as needed.)
13. A random sample is drawn from a population of known standard deviation 11.3. Construct a 90% confidence interval for the population mean based on the information given (not all of the information given need be used). a. n-36, x =105.2, s=11.2 b. n-100, x =105.2, s - 11.2 14. A random sample is drawn from a population of unknown standard deviation. Construct a 99%99% confidence interval for the population mean based on the information given. a. n=49, x 17.1,...
7. Jose conducts a random sample of 41 people regarding their television viewing habits. He found that the sample mean was I = 4.615 hours per week with a sample standard deviation of s = 2.277 hours per week. Find a 90% confidence interval for the population mean. Nadide lines for ba t h ballot about
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