« previous next »

Author Question: The formula for a confidence interval for the population mean is based on the rule for sample means, ... (Read 84 times)

melly21297

  • Hero Member
  • *****
  • Posts: 565
on: Jul 24, 2018
The formula for a confidence interval for the population mean is based on the rule for sample means, which has assumptions that need to be met. What are those assumptions? (Hint: there are different assumptions depending on whether or not the population is bell-shaped.)

Question 2

What three items are needed in order to construct a confidence interval to estimate the mean of a population?


nothere

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 24, 2018
Answer to Question 1

1) IF THE POPULATION IS BELL-SHAPED, ANY SIZE RANDOM SAMPLE CAN BE TAKEN; 2) IF THE POPULATION IS NOT BELL-SHAPED, A LARGE ENOUGH SAMPLE MUST BE TAKEN (AT LEAST 30 MEASUREMENTS).

Answer to Question 2

1) SAMPLE MEAN; 2) SAMPLE STANDARD DEVIATION; 3) SAMPLE SIZE.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Bipolar disease. The term bipolar means “pertaining to two poles.” The individual with this form of Bipolar disease. The term bipolar means “pertaining to two poles.” The individual with this form of
The overlapping relationship among research, evidence-based practice The overlapping relationship among research, evidence-based practice
Primary aging means changes in hair color and skin texture for almost everyone. Primary aging means changes in hair color and skin texture for almost everyone.
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
Performing Transmission-Based Precaution: Isolation Techniques Performing Transmission-Based Precaution: Isolation Techniques
A medical assistant holds a specimen container to receive a biopsy sample. A medical assistant holds a specimen container to receive a biopsy sample.
Video: Barriers - eye structures, digestive mucosa, respiratory mucosa & genitourinary mucosa

For a complete list of videos, visit our video library