A Company Is Researching the Effectiveness of a New Website

question 8

Short Answer

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. The results follow. Let α = 0.05. Is the mean time to access the new website design shorter, or is (time for the old design - time for the new design) greater than zero? Express your answer in terms of the null hypothesis.

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Definitions:

Pigments

Substances that impart color to other materials by absorbing certain wavelengths of light and reflecting others.

Sea Level

The average height of the ocean's surface, used as a base for measuring elevation and depth on Earth.

Electron Transport Chain

A series of protein complexes that transfer electrons from electron donors to electron acceptors via redox reactions and couples this electron transfer with the transfer of protons across a membrane.

Photosystem II

A component of the photosynthesis process in plants and algae that captures photons and uses the energy to extract electrons from water molecules.