Jim Corner, owner of Corner Bike Rentals, wants to start analyzing his company's quality. For each bike rental, there are four types of customer complaints: (1) bike not working properly, (2) bike wrong size, (3) bike uncomfortable, and (4) bike broken during operation. During the past week, his company rented 276 bikes. He received 21 total complaints.

What is his company's DPMO for the past week? Do not round intermediate calculations. Round your answer to the nearest whole number.

Using Table 8.4, what is their Six Sigma operating level?

If Jim wanted to operate at the 5 sigma level, what would his errors have needed to be over the past week? Do not round intermediate calculations. Round your answer to three decimal places.

\begin{tabular}{|l|l|l|} \hline \multicolumn{3}{|l|}{ Table 8.4 Sigma DPMO Metrics } \\ \hline \begin{tabular}{l} NO. STANDARD DEVIATIONS \\ ABOVE THE MEAN \end{tabular} & PERCENT OF DEFECT-FREE OUTPUT & \begin{tabular}{l} DEFECTS PER MILLION OPPORTUNITIES \\ (DPM0) \end{tabular} \\ \hline 2 & 69.15 & 308,537 \\ \hline 2.5 & 84.13 & 158,686 \\ \hline 3 & 93.32 & 66,807 \\ \hline 3.5 & 97.73 & 22,750 \\ \hline 4 & 99.38 & 6,210 \\ \hline 4.5 & 99.865 & 1,350 \\ \hline 5 & 99.977 & 233 \\ \hline 5.5 & 99.9968 & 32 \\ \hline 6 & 99.99966 & 3.4 \\ \hline Note: Standard deviations includea 1.5 sigma"dnift." & \\ \hline \end{tabular}