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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.
Define Functions of Vitamin D? Vitamin D is required to maintain normal blood levels of calcium and phosphate, which are in turn needed for the normal mineralization of bone, m
please enlighten me on proteins and forensics
application of apical dominace in horticulture and agriculture short notes
Temperate deciduous forest - Ecosystem The temperate forests are characterised by a moderate climate and broad-leafed deciduous trees, which shed their leaves in fall, are bar
Does the environment exert an influence on the phenotype? The phenotype may be altered (compared to the original situation conditioned by its genotype) by nongenetic means, ins
What is Coarctation of Aorta ? More common in males (3:l). Narrowing of aorta typically located near aortic attachment of ligamenturn arteriosum or PDA. It can be a localized
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The measurement of blood sugar is of prime importance in the diagnosis and monitoring of patients with diabetes. You can refer sub-section 1.5.2 of Unit 1 to review about Glucose T
Q. What is the role of the ozone layer for living beings? The Ozone, O3, is a gas of the atmosphere that filters ultraviolet radiation from the sun disallowing most of that rad
Spinal cord Spinal cord is a long and cylindrical structure. It passes through the vertebral column extending all along the dorsal surface of trunk. Vertebrae of the v
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