A Researcher Is Estimating the Average Difference Between Two Population

question 10

Multiple Choice

A researcher is estimating the average difference between two population means based on matched?pairs samples. She gathers data on each pair in the study resulting in: Assume that the data are normally distributed in the population. To obtain a 90% confidence interval, the table t value would be ___.

• A) 1.86
• B) 1.397
• C) 1.533
• D) 2.132
• E) 3.346

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Definitions:

Pyranoses

Ring forms of six-membered sugar molecules that result from intramolecular hemiacetal formation, where the oxygen atom is part of the ring.

Furanoses

Ring forms of monosaccharides (sugars) that contain a five-membered ring typically including an oxygen atom.

Glucose

A basic form of sugar that serves as a crucial source of energy for living beings and a fundamental element of numerous carbohydrates.

Cyclic Hemiacetal

A cyclic organic compound formed from the reaction of an alcohol with an aldehyde or ketone, characterized by a carbon atom bonded to an oxygen (in hydroxy group), another oxygen (in ether group), a hydrogen, and an alkyl or aryl group.