Department S had no work in process at the beginning of the period. It added 14,400 units of direct materials during the period at a cost of $100,800; 10,800 units were completed during the period; and 3,600 units were 30% completed as to labor and overhead at the end of the period. All materials are added at the beginning of the process. Direct labor was $53,800 and factory overhead was $9,000. The total conversion costs for the period were

I'm confused on this could anyone me and show me what i need to do to solve it.

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?