« previous next »

Author Question: Sampling error is assumed a. only when the F ratio is calculated b. only when the t ratio is ... (Read 71 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?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Independent assortment of chromosomes at meiosis explains Mendel’s ratio Independent assortment of chromosomes at meiosis explains Mendel’s ratio
With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ... With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ...
How to solve any percent error problem How to solve any percent error problem
Finding the angle from a ratio (Part 1) Finding the angle from a ratio (Part 1)
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
A sampling of bacterial diversity. Most bacteria do not cause disease. A sampling of bacterial diversity. Most bacteria do not cause disease.
Video: Lower Limb Arteries Animation

For a complete list of videos, visit our video library