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

Author Question: Six hundred consumers belonging to the 25-34 age group were randomly selected in a city and were ... (Read 137 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
on: Aug 1, 2018
Six hundred consumers belonging to the 25-34 age group were randomly selected in a city and were asked whether they would like to purchase a domestic or a foreign automobile. Their responses are given below. Preference Frequency Domestic 240 Foreign 360 Develop a 95 confidence interval for the proportion of all such consumers who prefer to purchase domestic automobiles.

Question 2

A simple random sample of 36 items resulted in a sample mean of 40 and a standard deviation of 12 . Construct a 95 confidence interval for the population mean.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sabina576

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Aug 1, 2018
Answer to Question 1

.3608 to .4392

Answer to Question 2

35.94 to 44.06


craiczarry

  • Member
  • Posts: 527
Reply 2 on: Aug 1, 2018
Thanks for the timely response, appreciate it

AmberC1996

  • Member
  • Posts: 317
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

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.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Selected Corticosteroids Selected Corticosteroids
Selected Androgens and Anabolic Steroids Selected Androgens and Anabolic Steroids
Selected Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) Selected Nonsteroidal Anti-Inflammatory Drugs (NSAIDs)
Specific Gravity of Selected Materials Specific Gravity of Selected Materials
The ABO blood group antigens The ABO blood group antigens
Comparison of selected genomes Comparison of selected genomes
Video: Action potentials - electrical characteristics and generation

For a complete list of videos, visit our video library