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

Excretory system, what is the excretory organ of agama lizard

what is the excretory organ of agama lizard

Determine the term anapsid , Determine the term Anapsid ? The type of s...

Determine the term Anapsid ? The type of skull found in reptiles and seen today only in turtles. Behind the opening of the orbits the skull is solid and lacks temporal openings

Define management & prognosis of root perforation, Define Factors Affect Ma...

Define Factors Affect Management and Prognosis of Root Perforation Time Location of defect in relation of crestal bone Level of perforation Size Periodo

Define measuring direct aerobic fitness, Define Measuring Direct Aerobic Fi...

Define Measuring Direct Aerobic Fitness (VO 2 max) For direct measurement of VO, max, the subject is asked to perform exercise for 12 to 15 minutes. A stationary bicycle or a

Skeletal tissue, what is the classification of skeletal tissue?

what is the classification of skeletal tissue?

What is an accommodation, What is an accommodation? Accommodation is th...

What is an accommodation? Accommodation is the ability of the eye to focus on an object situated at variable distances from the eye. Like a camera, even the eye requires to cha

Explain limited mucosal contact diarrhoea, Q. Explain Limited mucosal conta...

Q. Explain Limited mucosal contact diarrhoea? Limited mucosal contact diarrhoea: It results from situations of inadequate mixing of chyme (semi-liquid mass of food passing thro

Explain the energy flow of ecology, Explain the energy flow of ecology? ...

Explain the energy flow of ecology? Energy flow: As you can see, energy flow is one way in an ecosystem. Energy is not recycled. The ultimate source of energy that powers eco

Ribosome in the translation of one mrna molecule, Q. How many of the same p...

Q. How many of the same proteins are made at the same time by each ribosome in the translation of one mRNA molecule? How does successive protein production occur in translation?

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