« previous next »

Author Question: A linear regression equation has b = 3 and a = - 6. What is the predicted value of Y for X = 4? ... (Read 132 times)

Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
on: Jun 20, 2018
A linear regression equation has b = 3 and a = - 6. What is the predicted value of Y for X = 4?
 
  A)  = 6
  B)  = -21
  C)  = -2
  D) This cannot be determined without additional information.

Question 2

A researcher conducts a hypothesis test to evaluate the effect of a treatment that is expected to increase scores. The hypothesis test produces a z-score of z = 2.37. If the researcher is using a one-tailed test, what is the correct statistical decision?
 
  A) Reject the null hypothesis with  = .05 but not with  = .01.
  B) Reject the null hypothesis with either  = .05 or  = .01.
  C) Fail to reject the null hypothesis with either  = .05 or  = .01.
  D) This cannot be answered without additional information.


IRincones

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jun 20, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Predicted effects of piscivores on planktivore, herbivore, and phytoplankton biomass and production Predicted effects of piscivores on planktivore, herbivore, and phytoplankton biomass and production
The linear meiosis of Neurospora The linear meiosis of Neurospora
Predicted Temperature Trends Through the 21st Century Predicted Temperature Trends Through the 21st Century
How to solve a linear system when the variable is in the denominator position (Question 2 of 2) How to solve a linear system when the variable is in the denominator position (Question 2 of 2)
How to solve a linear algebraic mixture problem with two unknowns How to solve a linear algebraic mixture problem with two unknowns
Trig Equation Trig Equation
Video: Buffers definition and the role of buffer in the body

For a complete list of videos, visit our video library