A Company Is Researching the Effectiveness of a New Website

question 88

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. For a 0.01 significance level, what is the decision regarding the hypothesis that the training was effective in improving customer relationships?

• A) Reject the null hypothesis and conclude that the new design reduced the mean access times.
• B) Reject the null hypothesis and conclude that the new design did not reduce the mean access times.
• C) Fail to reject the null hypothesis.
• D) Fail to reject the null hypothesis and conclude that the mean access times are inaccurate.

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Definitions:

UV Light

Ultraviolet light, a type of electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays, known for its ability to disinfect and cause sunburn.

Dissolve

The process by which a substance integrates into a liquid, resulting in a homogeneous mixture or solution.

Water Scarcity

The situation where the available supply of freshwater within a region fails to meet the demand.

Infrastructure

The fundamental facilities and systems serving a country, city, or area, including transportation and communication systems, water and power lines, and public institutions like schools, post offices, and prisons.