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

Author Question: Regression analysis was applied between sales (in 1000) and advertising (in 100) and the following ... (Read 137 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
on: Jun 24, 2018
Regression analysis was applied between sales (in 1000) and advertising (in 100) and the following regression function was obtained. y = 500 + 4x Based on the above estimated regression line, if advertising is 10,000, then the point estimate for sales (in dollars) is
 a. 900.
  b. 900,000.
  c. 40,500.
  d. 505,000.

Question 2

In a normal distribution, it is known that 27.34 of all the items are included from 100 up to the mean, and another 45.99 of all the items are included from the mean up to 145 . Determine the mean and the standard deviation of the distribution.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tjayeee

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

Mean = 113.5 Standard deviation = 18


PhilipSeeMore

  • Member
  • Posts: 561
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

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.

Is the self the same as the brain? Materialists contend that in the final analysis, mental states ... Is the self the same as the brain? Materialists contend that in the final analysis, mental states ...
Perspective analysis of Duccio, Annunciation of the Death of the Virgin, from the Maestà ... Perspective analysis of Duccio, Annunciation of the Death of the Virgin, from the Maestà ...
Torque is a twisting force equal to the distance from the pivot point times the force applied ... Torque is a twisting force equal to the distance from the pivot point times the force applied ...
Direct pressure applied to a sinus reflex on the tip of a toe. Direct pressure applied to a sinus reflex on the tip of a toe.
Gene-expression analysis generated from expression DNA microarrays Gene-expression analysis generated from expression DNA microarrays
Genetic interactions identified through synthetic lethal analysis Genetic interactions identified through synthetic lethal analysis
Video: Nervous pathway to the Neuromuscular (NMJ)

For a complete list of videos, visit our video library