« previous next »

Author Question: Suppose the estimated regression line for predicting the high temperature of the day from the ... (Read 187 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Jun 24, 2018

  Suppose the estimated regression line for predicting the high temperature of the day from the nighttime low temperature is y = 12 + 1.2x. What is the value for the residual when the nighttime low is 45 if the observed daytime high temperature is 70?
 

  a.-4
  b.4
  c.66
  d.25

Question 2


  What does the hypothesis H0: imply?
 

  a.It implies that the regression line does not have a y-intercept.
  b.It implies that x is necessary for predicting y.
  c.It implies that x has no value in predicting y.
  d.It implies that y is of no use in predicting x.


mcarey591

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Jun 24, 2018
Answer to Question 1

correct: b

Answer to Question 2

correct: c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

The relationship between air temperature and two measures of water vapour saturation of air. The relationship between air temperature and two measures of water vapour saturation of air.
This Black-browed Albatross has been hooked on a long-line. This Black-browed Albatross has been hooked on a long-line.
A gasoline direct-injection system injects fuel under high pressure directly into the combustion ... A gasoline direct-injection system injects fuel under high pressure directly into the combustion ...
Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ... Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ...
Histopathologic findings in Crohn's disease. A high magnification micrograph of a colonic ... Histopathologic findings in Crohn's disease. A high magnification micrograph of a colonic ...
An 80-g aluminum calorimeter contains 380 g of water at an equilibrium temperature of A piece ... An 80-g aluminum calorimeter contains 380 g of water at an equilibrium temperature of A piece ...
Video: How does an animal choose what food to eat?

For a complete list of videos, visit our video library