« previous next »

Author Question: Sampling error is assumed a. only when the F ratio is calculated b. only when the t ratio is ... (Read 62 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
on: Jun 20, 2018
Sampling error is assumed
 
  a. only when the F ratio is calculated
  b. only when the t ratio is calculated
  c. only when the Pearson r is significant
  d. whenever samples are measured

Question 2

A researcher selects a pair of random samples. In Group 1 the scores are 25, 25, 24, 24, 23, 233, 22, 21, 20. In Group 2 the scores are 22, 20, 20, 18, 15, 15, 12, 12, 10.
 
  a. Find the t ratio
  b. Do you reject Ho?
  c. Do the two groups represent a single population?


Ahnyah

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 20, 2018
Answer to Question 1

d

Answer to Question 2

a t=4.608


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Phlebotomy. In this common procedure, a syringe needle punctures a vein, usually in the arm, and wit Phlebotomy. In this common procedure, a syringe needle punctures a vein, usually in the arm, and wit
Sources of diagnostic error Sources of diagnostic error
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
Ratio of College Wages to High-School Wages Ratio of College Wages to High-School Wages
A Punnett square generating the F2 ratio of the F1 x F1 cross A Punnett square generating the F2 ratio of the F1 x F1 cross
The chorionic villus sampling technique. (a) A catheter is inserted into the uterus through the vagi The chorionic villus sampling technique. (a) A catheter is inserted into the uterus through the vagi
Video: Morphology of a tomato plant

For a complete list of videos, visit our video library