This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The office manager for an ophthalmologist wants to estimate the average time that the doctor spends ... (Read 179 times)

lak

  • Hero Member
  • *****
  • Posts: 546
on: Jun 24, 2018
The office manager for an ophthalmologist wants to estimate the average time that the doctor spends with each patient in order to better schedule appointments. A random sample of 49 is taken and the sample mean is 20.3 minutes. Assume that the office manager knows from past experience that the standard deviation is 14 minutes. She finds that a 95 confidence interval is between 18.3 and 22.3 minutes. What is the point estimate of the population mean? What is the confidence coefficient?

Question 2

The temperature readings for 20 winter days in Big Rapids, Michigan are normally distributed with a mean 5.5 degrees and a standard deviation of 1.5 . Determine the 90 confidence interval estimate for the winter mean temperature. ___________________ _ to ___________________ _
 Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jun 24, 2018
Answer to Question 1

20.3; 0.95

Answer to Question 2

4.948; 6.052


lak

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jun 24, 2018
Thank you :)


macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Jun 24, 2018
Happy to help you


« previous next »
 

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Results from sequential study of two cohorts tested at three ages and at three different points in t Results from sequential study of two cohorts tested at three ages and at three different points in t
Time Line of Human History From Upper Paleolithic Period to the Present Time Line of Human History From Upper Paleolithic Period to the Present
Richmond, Virginia, lies in ruins in April 1865 at the time of Lincoln’s visit—and a few days before Richmond, Virginia, lies in ruins in April 1865 at the time of Lincoln’s visit—and a few days before
Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010 Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010
Topics of Review for Front-Office Personnel Topics of Review for Front-Office Personnel
A clock is showing the time as exactly 3:00 p.m. and 25 s. A clock is showing the time as exactly 3:00 p.m. and 25 s.
Video: Non-polar compounds - insolubility

For a complete list of videos, visit our video library