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

Author Question: The regression equation relating x, the number of hours one studied, to y, the exam grade is ... (Read 87 times)

deesands

  • Hero Member
  • *****
  • Posts: 514
on: Jul 24, 2018
The regression equation relating x, the number of hours one studied, to y, the exam grade is determined to be  = 4.1x + 68.7. Predict the exam grade of someone who studied one and a half hours.
  1.approximately 75
  2.approximately 58
  3.approximately 100
  4.approximately 69

Question 2

The regression equation relating x, the number of hours one studied, to y, the exam grade is determined to be  = 4.1x + 68.7. From this equation, one can conclude that
  1.On average, each additional hour of studying will increase the exam grade by approximately four points.
  2.On average, each additional hour of studying will increase the exam grade approximately 69 points.
  3.If one studies four hours, the exam grade will be approximately a 69.
  4.The effect of one additional hour of studying can not be determined unless it is known how long one studied.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ally

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 24, 2018
Answer to Question 1

1

Answer to Question 2

1


deesands

  • Member
  • Posts: 514
Reply 2 on: Jul 24, 2018
Wow, this really help

carlsona147

  • Member
  • Posts: 341
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

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

History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar History of the number of observed sunspots during the last 250 years, which shows the ~11-year solar
The relationship between number of acres a Kipsigis man owns and the number of offspring he has duri The relationship between number of acres a Kipsigis man owns and the number of offspring he has duri
Father’s Age and the Number of de novo Mutations Father’s Age and the Number of de novo Mutations
Estimated Number of New Sexually Transmitted Infections Estimated Number of New Sexually Transmitted Infections
The number of words correctly completed in the New York Times crossword puzzle increases with age ... The number of words correctly completed in the New York Times crossword puzzle increases with age ...
Graph showing oral administration of a single-dose drug. The time of onset is 2 hours and the end of ... Graph showing oral administration of a single-dose drug. The time of onset is 2 hours and the end of ...
Video: Role of ATP in muscle movement

For a complete list of videos, visit our video library