« previous next »

Author Question: The symbol for _____ is a. sample covariance b. population covariance c. sample correlation d. ... (Read 124 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 FDA recognizes 118 routes of administration.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Sample Medicare identification card. Sample Medicare identification card.
Yin–Yang symbol. Yin–Yang symbol.
(a) A turbidometry detector measures laser light directly across from the light source. The sample, ... (a) A turbidometry detector measures laser light directly across from the light source. The sample, ...
Hares and Lynx population change "الأرانب البرية و الوشق" Hares and Lynx population change "الأرانب البرية و الوشق"
Population of California poppy plants Population of California poppy plants
Population growth Population growth
Video: Lipid digestion - mouth, stomach and small intestine

For a complete list of videos, visit our video library