Author Question: When determining the sample size necessary for estimating the true population mean, which factor is ... (Read 135 times)

V@ndy87

  • Hero Member
  • *****
  • Posts: 571
When determining the sample size necessary for estimating the true population mean, which factor is not of our concern when sampling with replacement?
 a. The allowable or tolerable sampling error.
  b. The level of confidence desired in the estimate.
  c. The population standard deviation.
  d. The population size.

Question 2

If multicollinearity exists among the independent variables included in a multiple regression model, then:
 a. the regression coefficients will be difficult to interpret.
  b. the standard errors of the regression coefficients for the correlated independent variables will increase.
  c. one or more of the coefficients may have the wrong sign.
  d. All of these choices are true.



Amiracle

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

D

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

For a complete list of videos, visit our video library