A Company Is Researching the Effectiveness of a New Website $\pm$

question 18

Multiple Choice

A company is researching the effectiveness of a new website design to decrease the time to access a website. Five website users were randomly selected, and their times (in seconds) to access the website with the old and new designs were recorded. To compare the times, they computed (new website design time - old website design time) . The results follow:
What are the null and alternative hypothesis?

• A) H₀: µ_d = 0; H₁: µ_d \(\pm\) 0
• B) H₀: µ_d \(\pm\) 0; H₁: µ_d = 0
• C) H₀: µ_d \(\neq\) 0; H₁: µ_d > 0
• D) H₀: µ_d \(\ge\) 0; H₁: µ_d \(\neq\) 0
• E) H₀: µ_d \(\ge\) 0; H₁: µ_d < 0

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Definitions:

Dispersion

A statistical term describing the extent to which values in a data set are spread out around the mean.

Contractual Arrangement

An agreement between two or more parties that is enforceable by law.

Loss of Control

Refers to the event where an entity no longer has the power to govern the financial and operating policies of another entity to obtain benefits from its activities.

Other Comprehensive Income

Other comprehensive income includes revenues, expenses, gains, and losses that are not included in net income and are directly recorded to equity, reflecting the company's total comprehensive income.