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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 the Role of Thiamin in the conversion carbohydrate to fats? Thiamin helps in the initial steps of fatty acid and sterol production. In this way, thiamin also helps co
In the prokaryotes, RNA transcribed from protein-coding genes or messenger RNA, mRNA, need little or no changes prior to translation. In reality, several mRNA molecu
Q. What are the ions? What are the two kinds of molecules into which ions are classified ? Ions are substances or atoms electrically charged by means of gain or loss of electron
What is the epidermis..
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
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There are several different lipoprotein species found in plasma but their basic structures are similar. The insoluble lipid (cholesterol ester and triglyceride) forms a central cor
Define Iron requirements of infants? The maintenance needs for all age groups is 14 mcg/kg body weights. For infants and preschoolers, iron needs for growth and' expansion of b
What is lamarckism? The Lamarckism is the theory that unites the law of use and disuse with the law of the transmission of acquired characteristics that is that asserted that a
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