A Company That Produces Financial Accounting Software Wants to Offer

question 64

Multiple Choice

A company that produces financial accounting software wants to offer better training to its customers. The training is intended to decrease the amount of time required to do complicated accounting calculations. For seven individuals, the amount of time (in minutes) to complete a complicated calculation is determined before and after completing the new training. For the Wilcoxon signed-rank test for the matched-pairs sample, the competing hypotheses are ________.

• A) H₀: m_D ≤ 0; H_A: m_D > 0
• B) H₀: m_D = 0; H_A: m_D ≠ 0
• C) H₀: m_D ≠ 0; H_A: m_D = 0
• D) H₀: m_D ≥ 0; H_A: m_D < 0

---

Definitions:

Alkyllithium

A class of organolithium compounds characterized by a direct bond between a lithium atom and a carbon atom in an alkyl group.

Acetic Acid

A simple carboxylic acid recognized as the main component of vinegar apart from water, with the formula CH3COOH.

2-Butanone

An organic compound, also known as methyl ethyl ketone, with the formula CH3COC2H5, used as a solvent.

Acid Chloride

A class of organic compounds derived from acids by replacing a hydroxyl group with a chlorine atom, often used as intermediates in synthesis.