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

Author Question: A least squares regression line a. can be used to predict a value of y if the corresponding x value ... (Read 82 times)

plus1

  • Hero Member
  • *****
  • Posts: 676
on: Jun 24, 2018
A least squares regression line
 a. can be used to predict a value of y if the corresponding x value is given.
  b. implies a cause-and-effect relationship between x and y.
  c. can only be determined if a good linear relationship exists between x and y.
  d. ensures that the predictions of y outside the range of the values of x are valid.

Question 2

The miles-per-gallon obtained by the 1995 model Z cars is normally distributed with a mean of 22 miles-per-gallon and a standard deviation of 5 miles-per-gallon.
 a. What is the probability that a car will get between 13.35 and 35.1 miles-per-gallon?
  b. What is the probability that a car will get more than 29.6 miles-per-gallon?
  c. What is the probability that a car will get less than 21 miles-per-gallon?
  d. What is the probability that a car will get exactly 22 miles-per-gallon?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

briezy

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jun 24, 2018
Answer to Question 1

a

Answer to Question 2

a. 0.9538
b. 0.0643
c. 0.4207
d. 0.0000


plus1

  • Member
  • Posts: 676
Reply 2 on: Jun 24, 2018
Gracias!

bassamabas

  • Member
  • Posts: 294
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Continuous, Absorption Line, and Emission Line Spectra Continuous, Absorption Line, and Emission Line Spectra
The engine is rotated until the timing marks on the front of the crankshaft line up with zero ... The engine is rotated until the timing marks on the front of the crankshaft line up with zero ...
How to Factor a Difference of Squares How to Factor a Difference of Squares
How to find the equation of a line passing through two points How to find the equation of a line passing through two points
Excel hardware is introducing a new product on a new product line of capacity 800 units per ... Excel hardware is introducing a new product on a new product line of capacity 800 units per ...
Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1 Find an equation of the tangent line to the graph of f(x) = sqrt(x) / (x+1) at the point x=1
Video: Gas exchange - partial pressure, locations, external and internal respiration

For a complete list of videos, visit our video library