A local company working in plastic products, face a huge challenges in operations: huge wasting in raw material and working hours, slow in improvements in productions and R&D$,$ high level of product defects. from your study$($ six sigma, lean management and kaizen$)$ and as a quality manger what you should do to face these challenges. Explain how to face the following:

$1\mathrm{.}0$ increase in cost of production.

$2\mathrm{.}0$ increase in warranty claims.

$3\mathrm{.}0$ increase in wasted materials.

$4\mathrm{.}0$ low human resources productivity.

$5\mathrm{.}0$ increase in number of products that do not meet customer needs.