« previous next »

Author Question: The symbol for _____ is a. sample covariance b. population covariance c. sample correlation d. ... (Read 59 times)

Deast7027

  • Hero Member
  • *****
  • Posts: 538
on: Jun 24, 2018
The symbol for _____ is  
 a. sample covariance
  b. population covariance
  c. sample correlation
  d. population correlation

Question 2

In order to estimate the average electric usage per month, a sample of 81 houses was selected and the electric usage was determined. Assume a population standard deviation of 450 kilowatt-hours. If the sample mean is 1858 kWh, the 95 confidence interval estimate of the population mean is
 a. 1760 to 1956 kWh.
   b. 1729 to 1987 kWh.
   c. 1758 to 1958 kWh.
   d. 1776 to 1940 kWh.


Eazy416

  • Sr. Member
  • ****
  • Posts: 360
Reply #1 on: Jun 24, 2018
Answer to Question 1

d

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Examining the survivorship curve of a Dall mountain sheep population reveals information on the caus Examining the survivorship curve of a Dall mountain sheep population reveals information on the caus
Trap set to monitor the wild population in the Dryandra Woodland Trap set to monitor the wild population in the Dryandra Woodland
Population Interactions and Communities Population Interactions and Communities
Rural versus Urban Population, 1820–1860 Rural versus Urban Population, 1820–1860
Sample Exercise Program for Limited Older Adults Sample Exercise Program for Limited Older Adults
World Population Growth, 1750-2150 World Population Growth, 1750-2150
Video: Multiple Sclerosis Animation

For a complete list of videos, visit our video library