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A Company Is Researching the Effectiveness of a New Website

Question 53

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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 follow. 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 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?


A) H0: µd = 0
B) H0: µd ≠ 0
C) H0: µd ≤ 0
D) H0: µd ≥ 0

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