This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following statements is false regarding the sample size needed to estimate a population ... (Read 37 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
on: Jun 24, 2018
Which of the following statements is false regarding the sample size needed to estimate a population mean?
 a. It is directly proportional to the population variance.
  b. It is directly proportional to the square of z / 2.
  c. It is directly proportional to the square of the maximum allowable error B.
  d. None of these choices.

Question 2

If a group of independent variables are not significant individually but are significant as a group at a specified level of significance, this is most likely due to:
 a. heteroscedasticity.
  b. an error in the analysis.
  c. multicollinearity.
  d. None of these choices.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tdewitt

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

C


penza

  • Member
  • Posts: 1,022
Reply 2 on: Jun 24, 2018
:D TYSM

ghepp

  • Member
  • Posts: 361
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

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?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta
Population genetics sample question Population genetics sample question
Projected Ethnic Changes in U.S. Population to 2050 Projected Ethnic Changes in U.S. Population to 2050
Sample prescription for chlorhexidine. Sample prescription for chlorhexidine.
Working-Age Fraction of the U.S. Population, 1950–2050 Working-Age Fraction of the U.S. Population, 1950–2050
A sample of carbon monoxide gas occupies 125 mL at 20.0 °C and 455 mm Hg. If the A sample of carbon monoxide gas occupies 125 mL at 20.0 °C and 455 mm Hg. If the
Video: Appendicitis Animation

For a complete list of videos, visit our video library