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

Author Question: Which of the following is a measure of dispersion? a. percentiles b. quartiles c. interquartile ... (Read 49 times)

nramada

  • Hero Member
  • *****
  • Posts: 580
on: Jun 24, 2018
Which of the following is a measure of dispersion?
 a. percentiles
  b. quartiles
  c. interquartile range
  d. All of the answers are correct.

Question 2

The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3 minutes. It is known that the standard deviation of the population of checkout times is 1 minute. With a .95 probability, the sample mean will provide a margin of error of
 a. 1.96.
   b. .10.
   c. .196.
   d. 1.64.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aidanmbrowne

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

c


nramada

  • Member
  • Posts: 580
Reply 2 on: Jun 24, 2018
Wow, this really help

parshano

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Using a sphygmomanometer to measure blood pressure. Using a sphygmomanometer to measure blood pressure.
Types of Problems Used to Measure Intelligence Types of Problems Used to Measure Intelligence
Using the voltmeter leads from a starting and charging test unit to measure the voltage drop ... Using the voltmeter leads from a starting and charging test unit to measure the voltage drop ...
Metric System: Measure of Weight and Volume Metric System: Measure of Weight and Volume
How to determine the interquartile range How to determine the interquartile range
Population distribution (dispersion) Population distribution (dispersion)
Video: Primary Active Transport - electrochemical gradient and ion transport / water movement

For a complete list of videos, visit our video library