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 112 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

anyusername12131

  • Member
  • Posts: 327
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Elk pellet group Elk pellet group
A blood smear. The smear reveals representative cells from each formed element group: red blood cell A blood smear. The smear reveals representative cells from each formed element group: red blood cell
The giant grass hoppers are invading the city! The giant grass hoppers are invading the city!
Standardization of Selected Herbal Products Standardization of Selected Herbal Products
Mix Up Your Choices within Each Food Group Mix Up Your Choices within Each Food Group
Video: Chemical Messengers Animation

For a complete list of videos, visit our video library