« previous next »

Author Question: With a paired t, a significant correlation has the effect of reducing the value of the estimated ... (Read 48 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
on: Jun 20, 2018
With a paired t, a significant correlation has the effect of reducing the
  value of the estimated standard error of difference.
 
  Indicate whether the statement is true or false

Question 2

A researcher selects a pair of random samples and predicts beforehand
  that Group 2 will score higher than Group 1. The scores in Group 1 are 11, 10,
  8, 3, 7, 1. The scores in Group 2 are 12, 11, 8, 4, 9, 2.
 
  a. Find the t ratio
  b. As a one-tail t, should Ho be rejected?
   If rejected, state the probability of the alpha error.
  c. Do the two groups represent a single population?


atrochim

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jun 20, 2018
Answer to Question 1

T

Answer to Question 2

a t=-0.441


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
Reply #2 on: Jun 20, 2018
Thank you


atrochim

  • Sr. Member
  • ****
  • Posts: 331
Reply #3 on: Jun 20, 2018
No problem :)


« previous next »
 

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Sequential decline of whale catches in the Antarctic shows the strong effect of human predators. Sequential decline of whale catches in the Antarctic shows the strong effect of human predators.
Gas Solubility - Effect of pressure Gas Solubility - Effect of pressure
Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor
Clinically Significant Drug-Drug Interactions in Dentistry Clinically Significant Drug-Drug Interactions in Dentistry
Clinically Significant Drug-Drug Interactions in Dentistry Clinically Significant Drug-Drug Interactions in Dentistry
Correlation between the Mendelian postulates of segregation Correlation between the Mendelian postulates of segregation
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

For a complete list of videos, visit our video library