In which of the following situations will a prediction interval for ynext be widest?
A.x1 = mx1, x2 = mx2, x3 = mx3.
B.x1 = mx1 + sx1, x2 = mx2, x3 = mx3 +sx3.
C.x1 = mx1 + 2*sx1, x2 = mx2+ sx2, x3 = mx3.
D.x1 = mx1 + 2*sx1, x2 = mx2+ 2*sx2, x3 = mx3 2*sx3.
Ans: D
You might also like to view...
Cedric is taking a vocabulary quiz in his grammar class. Because the information he is being tested on is a set of general meanings that are not tied to a specific time or event, the test is examining ____ memory
a. procedural b. universal c. semantic d. episodic
Shelly says, "I think that everyone has an inherent tendency to strive toward their full potential. It shows in our creativity and delight in discovering new things." Shelly's thoughts illustrate ____
a. Maslow's term "self-actualization" b. Thorndike's principle "the law of effect" c. Freud's view of unconscious influences on our development d. Ellis's concept of rational beliefs
Gil has been feeling worthless and unmotivated since he lost his job six months ago. He schedules an appointment with his doctor to find out if there is some physical problem that is causing his symptoms. His doctor tells Gil that he has a psychological disorder that should respond well to medication. The doctor will most likely treat Gil's symptoms by prescribing:
a. fluoxetine b. benzodiazepines c. lithium carbonate d. chlorpromazine
The mean of 36 reading scores drawn from a population with a standard deviation of 8.4 is 25. Therefore, ?m = ______.
a. 14.112 b. 1.40 c. 1.68 d. 1.96