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 193 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?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Time dependence of the rates of a chemical reaction Time dependence of the rates of a chemical reaction
Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc Martin Van Buren, sitting uncomfortably for this engraving, would eventually ascend to the presidenc
Aggregates are people who happen to be in the same place at the same time. Aggregates are people who happen to be in the same place at the same time.
The injector on-time is called the pulse width. The injector on-time is called the pulse width.
Overallocation of Labor to Farming When Farmworkers Are Paid Their Average Product Overallocation of Labor to Farming When Farmworkers Are Paid Their Average Product
The diagonal of the floor of a rectangular office cubicle is 2 ft longer than the ... The diagonal of the floor of a rectangular office cubicle is 2 ft longer than the ...
Video: Parkinson's Disease

For a complete list of videos, visit our video library