7. Consider a business that crafts guitar cords. The ideal length of these cords are targeted at 6 ft. The production line's variation is measured by a standard deviation, amounting to 0.03 ft. The producers have established the maximum allowable length at 6.045 ft, while setting the minimum at 5.96 ft. Costs incur when adjustments are necessary: $0.23 for cords exceeding the maximum threshold, and $0.99 for cords falling short of the minimum. Each foot of the cord costs $0.81, and the company's annual output is 113,000 of these guitar cords.

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a) Zup =

enter your response here

(round your response to two decimal places).

b) P (> USL) =

enter your response here

(round your response to four decimal places).

c) Zdown =

enter your response here

(round your response to two decimal places).

d) P (< LSL) =

enter your response here

(round your response to four decimal places).

e) The annual expected fixing cost of the guitar cords is

$enter your response here

(round your answer to the nearest dollar).

f) The annual expected material cost of the guitar cords is

$enter your response here

(round your answer to the nearest dollar).