Question

5) After implementing a new strategy to improve services for patients, the Emergency Department of a...

5) After implementing a new strategy to improve services for patients, the Emergency Department of a hospital claims customers spend fewer than 23 minutes on average to see a physician. A randomly selected sample of 40 patients shows the average wait time of 22.6 minutes. Test the Emergency Department's claim at the 2.5% level of significance, assuming the standard deviation of wait time for all patients in that hospital is 4.15 minutes.

3) A major online retailer wishes to know the average number of returns processed at each of its return centers every week, accurate to within 125 returns. If the standard deviation is 600

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

Homework Answers

Answer #1

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
After implementing a new strategy to improve services for patients, the Emergency Department of a hospital...
After implementing a new strategy to improve services for patients, the Emergency Department of a hospital claims customers spend fewer than 20 minutes on average to see a physician. A randomly selected sample of 132 patients shows the average wait time of 18.2 minutes. Test the Emergency Department's claim at the 10% level of significance, assuming the standard deviation of wait time for all patients in that hospital is 2.3 minutes.
A database contains information on the wait times patients have reported in the emergency room to...
A database contains information on the wait times patients have reported in the emergency room to see a physician since the hospital opened 5 years ago. Suppose the wait times vary according to a normal distribution with mean wait time of 1.9 hours and a standard deviation of 0.7 hours. Based on a simple random sample of 23 patients at the hospital in the waiting room, what is the probability that they will have to wait for more than 2.5...
A major online retailer wishes to know the average number of returns processed at each of...
A major online retailer wishes to know the average number of returns processed at each of its return centers every week, accurate to within 75 returns. If the standard deviation is 400 returns each week, how large a sample size will be needed in order to achieve the desired precision at the 5% significance level?
A hospital claims that its emergency room has an average wait time of 2 hours (120...
A hospital claims that its emergency room has an average wait time of 2 hours (120 minutes). After a visit to their ER when we had to wait for what seemed like an eternity, we decide to test the hospital's claim because we think their claim of an average of two hours is way too low. We survey people as they exit the ER. From our sample of 58 people, we get a mean wait time of 128 minutes with...
Nationally, patients who go to the emergency room wait an average of 7 hours to be...
Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the hospital. Do patients at rural hospitals have a lower waiting time? The 10 randomly selected patients who went to the emergency room at rural hospitals waited an average of 6.2 hours to be admitted into the hospital. The standard deviation for these 10 patients was 2.5 hours. What can be concluded at the the αα = 0.01 level of significance level...
A hospital administrator hoping to improve wait times decides to estimate the average emergency room waiting...
A hospital administrator hoping to improve wait times decides to estimate the average emergency room waiting time at her hospital. She collects a simple random sample of 64 patients and determines the time (in minutes) between when they checked in to the ER until they were first seen by a doctor. A 95% confidence interval based on this sample is (128 minutes, 147 minutes), which is based on the normal model for the mean. Determine if the following statement is...
I need someone to answer this question for me please its for Statistical Modeling and Data...
I need someone to answer this question for me please its for Statistical Modeling and Data Analysis. Thanks. 1.      (65 points) Waiting at an ER. A hospital administrator hoping to improve wait times decides to estimate the average emergency room waiting time at her hospital. She collects a simple random sample of 64 patients and determines the time (in minutes) between when they checked in to the ER until they were first seen by a doctor. She repeats this 1000...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how the firms resources incompetencies support the given pressures regarding costs and local responsiveness. Describe entry modes have they usually used, and whether they are appropriate for the given strategy. Any key issues in their global strategy? casestudy: Atlanta, June 17, 2014. Sea of Delta employees and their families swarmed between food trucks, amusement park booths, and entertainment venues that were scattered throughout what would...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT