This data was collected to generate a learning curve and I need to answer the following questions: 1. Prepare a formula to determine the average cycle time for the operation. 2. Use the formula to determine the average cycle time for cycle 1-80. Present the calculations in a tabulate form. Graph the curve.

\begin{tabular}{|c|c|} \hline Num. of observations & Assembly in seconds \\ \hline 1 & 192 \\ 2 & 68.1 \\ 3 & 58.19 \\ 4 & 50.54 \\ 5 & 50.77 \\ 6 & 39.44 \\ 7 & 41.72 \\ 8 & 65.48 \\ 9 & 48.82 \\ 10 & 34.72 \\ \hline Total & 649.78 \\ \hline \end{tabular}