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

Author Question: A researcher obtains a negative value for a chi-square statistic. What can you conclude because the ... (Read 17 times)

viki

  • Hero Member
  • *****
  • Posts: 525
on: Jun 20, 2018
A researcher obtains a negative value for a chi-square statistic. What can you conclude because the value is negative?
 
  A) The observed frequencies are consistently larger than the expected frequencies.
  B) The expected frequencies are consistently larger than the observed frequencies.
  C) There are large differences between the observed and expected frequencies.
  D) The researcher made a mistake; the value of the chi-square cannot be negative.

Question 2

Why are t statistics more variable than z-scores?
 
  A) The extra variability is caused by variations in the sample mean.
  B) The extra variability is caused by variations in the sample variance.
  C) The extra variability is caused by variations in the df value.
  D) The extra variability is caused by the large sample size.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macagnavarro

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

B


viki

  • Member
  • Posts: 525
Reply 2 on: Jun 20, 2018
Great answer, keep it coming :)

kjohnson

  • Member
  • Posts: 330
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Critical Values of the Chi-Square Distribution Critical Values of the Chi-Square Distribution
negative feedback loop negative feedback loop
negative feedback negative feedback
Kazimir Malevich, Black Square. Kazimir Malevich, Black Square.
Negative feedback control of the female reproductive hormones. Negative feedback control of the female reproductive hormones.
Control of Homeostasis: Negative Feedback Control of Homeostasis: Negative Feedback
Video: X chromosome inactivation in calico cats

For a complete list of videos, visit our video library