« previous next »

Author Question: Sampling error is assumed a. only when the F ratio is calculated b. only when the t ratio is ... (Read 74 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?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Sources of diagnostic error Sources of diagnostic error
Chem problem calculated Chem problem calculated
Finding the angle from a ratio Finding the angle from a ratio
A very small sampling of organisms in an arctic food web on land. A very small sampling of organisms in an arctic food web on land.
Chorionic villus sampling (CVS) Chorionic villus sampling (CVS)
A sampling of bacterial diversity. Most bacteria do not cause disease. A sampling of bacterial diversity. Most bacteria do not cause disease.
Video: Inflammation and Fever

For a complete list of videos, visit our video library