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

Author Question: If the sum of squares due to regression (SSR) is 60, which of the following must be true? a. The ... (Read 51 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
on: Jun 24, 2018
If the sum of squares due to regression (SSR) is 60, which of the following must be true?
 a. The coefficient of correlation is 0.9.
  b. The total sum of squares (SST) is at least 60.
  c. The y-intercept is positive.
  d. The slope, b, is positive.
  e. The coefficient of determination is 0.81.

Question 2

If all the points in a scatter diagram lie on the least squares regression line, then the coefficient of correlation:
 a. must be 1.0.
  b. must be -1.0.
  c. must be either 1.0 or -1.0.
  d. must be 0.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tofugiraffe

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

C


SAVANNAHHOOPER23

  • Member
  • Posts: 542
Reply 2 on: Jun 24, 2018
Excellent

xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

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

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

A true albino squirrel. Note the pink eyes. A true albino squirrel. Note the pink eyes.
Apparent and True Orbits of Alpha Centauri. Apparent and True Orbits of Alpha Centauri.
A recruiting poster for the “True Sons of Freedom” encouraged African Americans to enlist. In fact, A recruiting poster for the “True Sons of Freedom” encouraged African Americans to enlist. In fact,
True Dover Sole True Dover Sole
Midsagittal section indicating locations of true and false pelves Midsagittal section indicating locations of true and false pelves
Anterosuperior view of true pelvis (blue) Anterosuperior view of true pelvis (blue)
Video: Brain Lobes Animation

For a complete list of videos, visit our video library