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

Difference between blind spot and yellow spot, Difference between Blind Spo...

Difference between Blind Spot and Yellow Spot - Blind Spot Y ellow spot 1. It lies litte away from yellow spot.   2. No pi

Bacterial diseases- braxy, Braxy The causative agent of braxy is Cl. s...

Braxy The causative agent of braxy is Cl. septicum. It usually affects lambs. The agent is a normal inhabitant of soil and is frequently found in the faeces of herbivores. Bra

Absorption of proteins in infants, Absorption of proteins in infants In...

Absorption of proteins in infants In  infants, permeability of  the  intestine appears to be greater than  in  later  life, and some  large  protein molecules such as antibodie

Types of blastula, TYPES OF BLASTULA - Blastulas are of following type ...

TYPES OF BLASTULA - Blastulas are of following type -                    1 .       STEREOBLASTULA - The blastocoel is very small. It's blastomere are less in num

What is the first polar body, What is the first polar body? How different i...

What is the first polar body? How different is it from the oocyte II? In oogenesis the oogonium differentiates into oocyte I (2n) and this cell enters meiosis. After finishing

Oestrous cycle, OESTROU S CYCLE - Also known as heat period. Common in...

OESTROU S CYCLE - Also known as heat period. Common in rabbit, cat, dog, sheeps. In this period desire for copulation occur. Possibility of fertilization is 100%.

The statement is true or false, Anton van Leeuwenhoek was the first to prop...

Anton van Leeuwenhoek was the first to propose placing microorganisms into the Kingdom Monera. True or False

State the enzymes utilization in brewing industry, Enzymes utilization in B...

Enzymes utilization in Brewing Industry Here, the main starting material is malt, produced by allowing barley seeds to germinate under moist conditions. The reserve starch is b

Explain wire loop and tube method, Explain Wire loop and Tube Method 1....

Explain Wire loop and Tube Method 1.  Use a 25-gauge dental injection needle, cut to remove beveled end 2. Both ends of-mm diameter steel ligature wire passed through the ne

Why is it hard to produce vaccines against dengue and aids, Q. Why is it di...

Q. Why is it difficult to produce efficient vaccines against a viral infection like dengue and AIDS? It is difficult to make vaccines for dengue because there are four differen

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