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A Company Is Researching the Effectiveness of a New Website

question 31

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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 are shown here. 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 are shown here. What is the null hypothesis? A) H<sub>0</sub>: µ<sub>d</sub> = 0 B) H<sub>0</sub>: µ<sub>d</sub> ≠ 0 C) H<sub>0</sub>: µ<sub>d</sub> ≤ 0 D) H<sub>0</sub>: µ<sub>d</sub> ≥ 0 What is the null hypothesis?

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