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

Author Question: Suppose a chi-square test statistic from a sample of size 1,000 is 38.2 with a p-value of .0001, so ... (Read 94 times)

JMatthes

  • Hero Member
  • *****
  • Posts: 578
on: Jul 24, 2018
Suppose a chi-square test statistic from a sample of size 1,000 is 38.2 with a p-value of .0001, so the relationship is statistically significant. If the sample size for this study had only been based on a sample size of 100 (but the percentages remained the same), what would the chi-square test statistic have been and what conclusion would have been drawn?
 a. Chi-square = 38.2; p-value = .0001; the relationship is statistically significant.
  b. Chi-square = 3.82; p-value = .001; the relationship is statistically significant.
  c. Chi-square = 3.82; p-value = .052; the relationship is not statistically significant.
  d. None of the above.

Question 2

Is it possible for an important relationship in a population to fail to achieve statistical significance in the sample and therefore go undetected, even if the sample is selected properly and the data are collected correctly? Explain your answer.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mammy1697

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

YES; WHY: 1) THERE MAY HAVE ONLY BEEN A FEW OBSERVATIONS; OR 2) THE SAMPLE IS NOT REPRESENTATIVE OF THE POPULATION, JUST BY CHANCE.


JMatthes

  • Member
  • Posts: 578
Reply 2 on: Jul 24, 2018
Gracias!

alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Scale used to measure pupil size in millimeters. Scale used to measure pupil size in millimeters.
The Inverse-Square Law The Inverse-Square Law
Pichia test Pichia test
Kazimir Malevich, Black Square. Kazimir Malevich, Black Square.
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
Performing the Trendelenburg’s test: Applying tourniquet Performing the Trendelenburg’s test: Applying tourniquet
Video: Types of synapses - electrical & chemical

For a complete list of videos, visit our video library