using a two-sample t-test , Biology

Assignment Help:

 After stinging its victim, the honeybee leaves behind the barbed stinger, poison sac, and muscles that continue to pump venom into the wound. A study compared two methods of removing the stinger left behind: scraping off with a credit card or pinching off with thumb and index finger. A total of 40 stings were induced on volunteers. Twenty were removed with the credit card method, and twenty were removed with the pinching method. The size of the welt left by each sting was measured ten minutes later. All 40 measurements came from two volunteers, every of whom received one treatment ten times on one arm and the other treatment ten times on the other arm.

a.    The data were analyzed using a two-sample t-test with a sample size of 20 for each treatment. What is wrong with this approach? verify the problem by name, and describe how it can lead to misleading results.

b.    What test would be a better choice for these data?

c.    Suggest an improvement in the experimental design.

 


Related Discussions:- using a two-sample t-test

Population dispersal, Population Dispersal Population dispersal i...

Population Dispersal Population dispersal is the movement of individuals into or out of the population or the population area. It occurs in three following ways in a popu

What is cyclosis, What is cyclosis? Cyclosis is a type of internal cell...

What is cyclosis? Cyclosis is a type of internal cell movement in which an oriented flow of circulating material is formed and maintained in the cytoplasm by the action of micr

Define some beneficial effects of fungi, Define some Beneficial Effects of ...

Define some Beneficial Effects of Fungi? 1. These act as decomposers and can degrade complex organic molecules in dead plants and animals to simple organic compounds and inorga

Why ingestion of vegetable fibers improve the bowel habit, Q. Why does the ...

Q. Why does the ingestion of vegetable fibers improve the bowel habit in people that suffer from hard stools? Some kinds of plant fibers aren't absorbed by the intestine but pl

What are the four groups of protozoans, Q. What are the four groups of prot...

Q. What are the four groups of protozoans? The four main groups of protozoans are the mastigophores flagellated, like the trypanosome that causes Chagas' disease, the sarcodine

Major metabolic gases transported by the blood, Q. Which are the two major ...

Q. Which are the two major metabolic gases transported by the blood? The major metabolic gases transported by the blood are molecular carbon dioxide (CO 2 ) and oxygen (O 2 ).

Type of membrane is the cell membrane, Q. Concerning permeability what type...

Q. Concerning permeability what type of membrane is the cell membrane? The cell membrane is a selectively permeable membrane that is it allows the passage of water and some sel

Explain the queens college step test, Explain the Queens College Step Test?...

Explain the Queens College Step Test? This test can be administered to large groups or those who are incapable of doing a test up till exhaustion. For this test, a bench (41 c

Vitamins and minerals requirement in chronic diarrhoea, Q. Vitamins and min...

Q. Vitamins and minerals requirement in chronic diarrhoea? Loss of vitamins is related to the degree of mucosal damage in chronic diarrhoea, which in turn impairs absorption an

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd