Author Question: A confidence interval is defined as: a. a point estimate plus or minus a specific confidence level. ... (Read 184 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
A confidence interval is defined as:
 a. a point estimate plus or minus a specific confidence level.
  b. a lower and upper confidence limit associated with a specific level of confidence.
  c. an interval that has a 95 probability of containing the population parameter.
  d. a lower and upper confidence limit that has a 95 probability of containing the population parameter.

Question 2

For a multiple regression model the following statistics are given: Total variation in y = 250, SSE = 50, k = 4, and n = 20 . Then, the coefficient of determination adjusted for the degrees of freedom is:
 a. 0.800 c. 0.840
  b. 0.747 d. 0.775



xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

B

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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.

For a complete list of videos, visit our video library