« 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 135 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?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

How to find the equation of a line that is perpendicular to a line passing through a point How to find the equation of a line that is perpendicular to a line passing through a point
How to classify whether an equation is linear, quadratic, or cubic How to classify whether an equation is linear, quadratic, or cubic
How to quickly find the vertex of a quadratic equation that is in standard form How to quickly find the vertex of a quadratic equation that is in standard form
Equation Equation
Algebraically solve the equation sec^2 θ-2=0 such that -π ≤ θ ≤ π Algebraically solve the equation sec^2 θ-2=0 such that -π ≤ θ ≤ π
Linear programming problems using the simplex method. Linear programming problems using the simplex method.
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library