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

Author Question: A sample of size 12 is taken from a population that is symmetrical and mounded. A sample mean of ... (Read 52 times)

NguyenJ

  • Hero Member
  • *****
  • Posts: 516
on: Jul 24, 2018
A sample of size 12 is taken from a population that is symmetrical and mounded. A sample mean of 16.2 is obtained and used to construct a 90 confidence interval for the population mean with an unknown . What is the value of the appropriate confidence coefficient?
  1.1.80
  2.1.65
  3.1.28
  4.1.36

Question 2

The t-distribution is more appropriate than the
   z-distribution when the ________ is unknown. The unknown parameter will than be estimated with the ________.


  1. sample size, sample mean
  2. population standard deviation, sample standard deviation
  3. df, population mean
  4. point estimate, sample mean


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Amiracle

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 24, 2018
Answer to Question 1

1

Answer to Question 2

2


NguyenJ

  • Member
  • Posts: 516
Reply 2 on: Jul 24, 2018
Excellent

okolip

  • Member
  • Posts: 362
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Exponential growth in the Canadian migratory population of the whooping crane after 70 years of cons Exponential growth in the Canadian migratory population of the whooping crane after 70 years of cons
Population Interactions and Communities Population Interactions and Communities
The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
Sample Exercise Prescription for Weight Training: Beginner Sample Exercise Prescription for Weight Training: Beginner
Size of Particles Size of Particles
Sample client goals from the Wellness Massage Pyramid. Sample client goals from the Wellness Massage Pyramid.
Video: What is Cholesterols? Introduction to Lipoproteins

For a complete list of videos, visit our video library