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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.
how is urea formed in the human body?
Explain about the Microcolony DEFT? It allows determination of viable cells. Food homogenate is filtered through a DEFT membrane and then placed on the surface of appropriate c
Eucaryotic cell structure All eucaryotic cells have a cytoskeleton made up of a network of protein filaments (Figure shown below). This network gives the cell its shape, capac
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Clinical Manifestations i) Evidence of Systemic Infection Fever, chills, rigor, night sweat, loss of weight, arthralgia, arthritis, backache, muscle pain. ii) Ev
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A female frog has a genetic trait that stops it from producing eggs. How likely is it that this trait will spread by the frog population? Explain your answer. This trait will
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Soybean protein used as stabilized dispersions Soybean protein concentrates have been used as stabilized dispersions in milk-like beverages and simulated dairy products, such a
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