Question

Based on a 2018 study, the average elapsed time between when a user navigates to a website on a mobile device until its main content is available was 14.6 seconds. This is more than a $20 \%$ increase from 2017 (searchenginejournal.com, https://www.searchenginejournal.com/). Responsiveness is certainly an important feature of any website and is perhaps even more important on a mobile device. What other web design factors need to be considered for a mobile device to make it more user friendly? Among other things, navigation menu placement and amount of text entry required are important on a mobile device. The following data provide the time it took (in seconds) randomly selected students (two for each factor combination) to perform a prespecified task with the different combinations of navigation menu placement and amount of text entry required. Navigation Menu Position $$ \begin{array}{ccc} & \text { Amount of Text Entry Required } \\ & \text { Low } & \text { High } \\ \text { Right } & 8 & 12 \\ & 12 & 8 \\ \text { Middle } & 22 & 36 \\ & 14 & 20 \\ \text { Left } & 10 & 18 \\ & 18 & 14 \end{array} $$ Use the ANOVA procedure for factorial designs to test for any significant effects resulting from navigation menu position and amount of text entry required. Use $\alpha=.05$.

          Based on a 2018 study, the average elapsed time between when a user navigates to a website on a mobile device until its main content is available was 14.6 seconds. This is more than a $20 \%$ increase from 2017 (searchenginejournal.com, https://www.searchenginejournal.com/). Responsiveness is certainly an important feature of any website and is perhaps even more important on a mobile device. What other web design factors need to be considered for a mobile device to make it more user friendly? Among other things, navigation menu placement and amount of text entry required are important on a mobile device. The following data provide the time it took (in seconds) randomly selected students (two for each factor combination) to perform a prespecified task with the different combinations of navigation menu placement and amount of text entry required.
Navigation Menu Position
$$
\begin{array}{ccc} 
& \text { Amount of Text Entry Required } \\
& \text { Low } & \text { High } \\
\text { Right } & 8 & 12 \\
& 12 & 8 \\
\text { Middle } & 22 & 36 \\
& 14 & 20 \\
\text { Left } & 10 & 18 \\
& 18 & 14
\end{array}
$$
Use the ANOVA procedure for factorial designs to test for any significant effects resulting from navigation menu position and amount of text entry required. Use $\alpha=.05$.

Added by Cristina S.

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