Write a letter, post-dated for April 30, 2013. “Dear Joel, I got my A because…” It should outline what you learned, what you did, and how you changed as a person
October 24, 2018
Jane Geddes Engineering Corporation purchased conveyor equipment with a list price of $10,000. Presented below are three independent cases related to the equip- ment. (Round to the nearest dollar.)
October 24, 2018

According to Chemical Engineering Progress (Nov. 1990), approximately 30% of all pipe work failures in chemical plants are caused by operator error.

According to Chemical Engineering Progress (Nov. 1990), approximately 30% of all pipe work failures in chemical plants are caused by operator error.
(a) What is the probability that out of the next 20 pipe work failures at least 10 are due to operator error?
(b) What is the probability that no more than 4 out of 20 such failures are due to operator error?
(c) Suppose, for a particular plant, that, out of the random sample of 20 such failures, exactly 5 are operational errors. Do you feel that the 30% figure stated above applies to this plant Comment?A small construction company has $100,000 set asid in a sink9ing fund to purchase new equipment. If $30,000 is invested at 30%, $20,000 is invested at 25%, and the remaining $50,000 at 20% per year, what is the overall rate of return on the entire $100,000?

 

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