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Which of the following is the null hypothesis for a two sample t test?
Methylxanthines
A class of chemicals including caffeine, theobromine, and theophylline, found in coffee, tea, and cocoa, used medically to relax bronchial muscles.
Asthma Attack
A sudden worsening of asthma symptoms caused by the tightening of muscles around the airways, leading to difficulty in breathing.
Cystic Fibrosis
A genetic disorder that affects the lungs and other organs, characterized by thick, sticky mucus that can lead to respiratory and digestive problems.
Genetic Implications
The potential effects or consequences that genetic makeup has on an individual's health, physical traits, or the possibility of transmitting a genetic condition to offspring.
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