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 78 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
Excellent

dantucker

  • Member
  • Posts: 346
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

In the Tai Forest a female chimp demonstrates a skill once thought to be unique to humans. Here she In the Tai Forest a female chimp demonstrates a skill once thought to be unique to humans. Here she
Selected skeletal muscles (anterior view). Selected skeletal muscles (anterior view).
Working and Living and Playing in the City Dump of Phnom Penh, Cambodia Working and Living and Playing in the City Dump of Phnom Penh, Cambodia
Selected Minerals Used for Pharmactherapy Selected Minerals Used for Pharmactherapy
Indications for Selected Calcium Salts Indications for Selected Calcium Salts
Selected Common Neurotransmitters Selected Common Neurotransmitters
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library