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

Author Question: The correlation between X and Y is r = 0.35. If we double each X value, decrease each Y by 0.20, and ... (Read 103 times)

Jkov05

  • Hero Member
  • *****
  • Posts: 556
on: Jul 25, 2018
The correlation between X and Y is r = 0.35. If we double each X value, decrease each Y by 0.20, and interchange the variables (put X on the Y-axis and vice versa), the new correlation
 
  A) is 0.70.
  B) is 0.90.
  C) cannot be determined.
  D) is 0.35.
  E) is 0.50.

Question 2

The auto insurance industry crashed some test vehicles into a cement barrier at speeds of 5 to 25 mph to investigate the amount of damage to the cars.
 
  They found a correlation of r = 0.60 between speed (MPH) and damage (). If the speed at which a car hit the barrier is 1.5 standard deviations above the mean speed, we expect the damage to be _?__ the mean damage.
  A) 0.60 SD above
  B) equal to
  C) 0.90 SD above
  D) 1.5 SD above
  E) 0.36 SD above
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

juicepod

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 25, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


Jkov05

  • Member
  • Posts: 556
Reply 2 on: Jul 25, 2018
:D TYSM

kilada

  • Member
  • Posts: 311
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Double strand of DNA Double strand of DNA
Double-check for any oil or vacuum leaks after starting the engine. Double-check for any oil or vacuum leaks after starting the engine.
Table - Correlation Analysis Table - Correlation Analysis
Opener Bronze sculpture of the Watson–Crick model for double-helical DNA Opener Bronze sculpture of the Watson–Crick model for double-helical DNA
Rosalind Franklin’s Photo 51, revealing DNA to be a double helix Rosalind Franklin’s Photo 51, revealing DNA to be a double helix
The B-form DNA double helix The B-form DNA double helix
Video: Brain Anatomy Animation (Part 1 of 2)

For a complete list of videos, visit our video library