Researchers Have Claimed That the Average Number of Headaches Per $H _ { 0 } : \mu = 10$

question 88

Short Answer

Researchers have claimed that the average number of headaches per student during a semester of Statistics is 10. Statistics students believe the average is higher. In a sample of n = 24 students the mean is 15 headaches with a deviation of 2. Which of the following represent the null and alternative hypotheses necessary to test the students' belief? A) $H _ { 0 } : \mu = 10$ vs. $H _ { \mathrm { a } } : \mu > 10$
B) $H _ { 0 } : \mu < 10$ vs. $H _ { \mathrm { a } } : \mu = 10$
C) $H _ { 0 } : \mu = 10$ vs. $H _ { a } : \mu < 10$
D) $H _ { 0 } : \mu = 10$ vs. $H _ { a } : \mu \neq 10$

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Definitions:

Digestive Process

The complex series of physical and chemical changes that food undergoes from ingestion to absorption into the bloodstream.

Inflammation

A biological response to injury or infection, characterized by swelling, redness, pain, and sometimes loss of function.

Liver

A vital organ in the human body involved in numerous metabolic processes, including detoxification, protein synthesis, and the production of biochemicals necessary for digestion.

Upper GI Series

A series of X-rays taken of the upper digestive system, including the esophagus, stomach, and first part of the small intestine, often using a contrast medium to enhance visibility.