Question

For a sample of 4 operating rooms taken in a hospital study, the mean noise level...

For a sample of 4 operating rooms taken in a hospital study, the mean noise level was 41.4 decibels and the standard deviation was 10.3. Find the 95% confidence interval of the true mean of the noise levels in the operating rooms. Assume the variable is normally distributed. Round your answers to at least two decimal places.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

please like ??

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
for sample of 29 operating rooms taken in a hospital study,the mean noise level was 42.7...
for sample of 29 operating rooms taken in a hospital study,the mean noise level was 42.7 decibel,and the standard deviation was 6.5.find the 98% confidence interval of the true mean of noise level in the operating rooms.assum the variable is normally distributed.use a graphical calculate and round the answer to at least one decimal place.
A health inspector was interested in determining if the noise levels of hospital                   corridors in...
A health inspector was interested in determining if the noise levels of hospital                   corridors in an urban area is greater than 59 decibels. To test this, the noise levels at                   84 randomly chosen hospitals from the urban area were measured in decibels. The                  sample mean noise level was 61.2 decibels, and the population standard deviation is                   7.9 decibels. Use the five step method to test the inspectors claim using α = .025.
The ideal (daytime) noise-level for hospitals is 45 decibels with a standard deviation of 11 db;...
The ideal (daytime) noise-level for hospitals is 45 decibels with a standard deviation of 11 db; which is to say, this may not be true. A simple random sample of 80 hospitals at a moment during the day gives a mean noise level of 47 db. Assume that the standard deviation of noise level for all hospitals is really 11 db. All answers to two places after the decimal. (a) A 99% confidence interval for the actual mean noise level...
A random sample of 18 registered nurses in a large hospital showed that they worked on...
A random sample of 18 registered nurses in a large hospital showed that they worked on average 44.8 hours per week. The standard deviation of the sample was 2.4. Estimate the mean of the population with 95% confidence. Assume the variable is normally distributed. Round intermediate answers to at least three decimal places. Round your final answers to one decimal place.
a random sample of 45 days taken at a large hospital shows that a mean of...
a random sample of 45 days taken at a large hospital shows that a mean of 37 patients were treated in the emergency room (ER) per day. The standard deviation of the population is 4. Find the 95% confidence interval of the mean number of ER patients treated each day at the hospital. Express your answers as decimals to the nearest hundredth , please show work and formulas used to solve this , thanks so much!
A random sample of 14 observations is used to estimate the population mean. The sample mean...
A random sample of 14 observations is used to estimate the population mean. The sample mean and the sample standard deviation are calculated as 158.4 and 30.10, respectively. Assume that the population is normally distributed. [You may find it useful to reference the t table.] a. Construct the 90% confidence interval for the population mean. (Round intermediate calculations to at least 4 decimal places. Round "t" value to 3 decimal places and final answers to 2 decimal places.) b. Construct...
Noise levels at 3 volcanoes were measured in decibels yielding the following data: 142,113,135 Construct the...
Noise levels at 3 volcanoes were measured in decibels yielding the following data: 142,113,135 Construct the 90%90% confidence interval for the mean noise level at such locations. Assume the population is approximately normal. Copy Data Step 2 of 4: Calculate the sample standard deviation for the given sample data. Round your answer to one decimal place
a) If a sample of SAT scores for 20 student has a score mean of 500...
a) If a sample of SAT scores for 20 student has a score mean of 500 with a standard deviation of 48. What is the 99% Confidence interval for the true mean? b) The birth weights in a population are normally distributed with a standard deviation of 13 oz. If sample of 25 was taken and its mean was 105, what is the 95% Confidence interval lower bound for the true mean?
A random sample of 16 registered nurses in a large hospital showed that they worked on...
A random sample of 16 registered nurses in a large hospital showed that they worked on average 44.3 hours per week. The standard deviation of the sample was 2.3. Estimate the mean of the population with 99% confidence. Assume the variable is normally distributed. Round intermediate answers to at least three decimal places. Round your final answers to one decimal place.
A random sample of 19 registered nurses in a large hospital showed that they worked on...
A random sample of 19 registered nurses in a large hospital showed that they worked on average 44.6 hours per week. The standard deviation of the sample was 2.1. Estimate the mean of the population with 90%confidence. Assume the variable is normally distributed. Round intermediate answers to at least three decimal places. Round your final answers to one decimal place.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT