In solar cells, the exposed surface area is the characteristic of interest. The tolerances on the length

Question:

In solar cells, the exposed surface area is the characteristic of interest. The tolerances on the length and width of the cells are 4 ± 0.06 cm and 5 ± 0.09 cm, respectively. Assuming these dimensions to be independent of each other and each normally distributed with a capability ratio of 1, what are the natural tolerance limits on surface area? If the design calls for specifications on the surface area to be 20 ±0.4, what proportion of the cells will be unacceptable assuming normality? What is the Cp index? If we did not know the of surface area, how would a capability index be found?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...