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

Describe about the argyll robertson pupil, Describe about the Argyll Robert...

Describe about the Argyll Robertson Pupil (ARP) Argyll Robertson Pupil (ARP) occurs in patients who have tertiary syphilis. There is a "light-near dissociation" because pupils

Explain separation of homologous chromosomes, Q. What are the respective fu...

Q. What are the respective functions of the separation of homologous chromosomes and of the separation of alike chromatids in meiosis? The separation of homologous chromosomes

Glanders, Glanders The glanders is caused by Burkholderia mallei (previous...

Glanders The glanders is caused by Burkholderia mallei (previously known as Malleomyces mallei) and it is a serious contagious disease of equines. Infected equidae are the reservo

Explain about true-breeding petunia plant with white petals, A true-breedin...

A true-breeding petunia plant with red petals was crossed with another true-breeding petunia plant with white petals. The plants of the F1 progeny had blue petals. When these F1 pl

How can the abundance and diversity of living beings, How can the abundance...

How can the abundance and diversity of living beings in the tropical forests be explained? The biodiversity of these ecosystems can be described by the great availability of th

What is the fluid that fills the nucleus called, Q. What is the fluid that ...

Q. What is the fluid that fills the nucleus called? The aqueous fluid that fills the nuclear region is called nucleoplasm or karyolymph. In the fluid there are enzymes, protein

If cell itself was hypertonic to the solution, What would happen to a cell ...

What would happen to a cell if it was placed into a hypertonic solution? Into a hypotonic solution? What would happen to a cell if the cell itself was hypertonic to the solution?

Role of protein in metabolism, ROL E OF PROTEIN - Main organic comp...

ROL E OF PROTEIN - Main organic component of body. Unit is amino acid. Polymer of amino acids. Amino acids combine to each other by peptide bond. Formation of bone, t

Consistently overwatering a potted tomato plant, Consistently overwatering ...

Consistently overwatering a potted tomato plant will eventually kill it. Using the map, suggest why waterlogged soil results in plant death. O2 cannot reach respiring root cells. T

Comparing the dna of a calfs liver and thymus, When comparing the DNA of a ...

When comparing the DNA of a calfs liver and thymus, which would be predicted to have more DNA and why? What are the differences of the DNA between the two?

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