SCENARIO 15-5
a Manufacturer of Computer Disks Took Samples of 240

question 86

Short Answer

SCENARIO 15-5
A manufacturer of computer disks took samples of 240 disks on 15 consecutive days.The number of disks with bad sectors was determined for each of these samples.The results are in the table that follows. $\begin{array}{ccc} \underline{\text { Day }} & \underline{\mathrm{Bad}} & \text { \% } \underline{\mathrm{Bad}}\\1 & 9 & 0.037500 \\2 & 7 & 0.029167 \\3 & 4 & 0.016667 \\4 & 6 & 0.025000 \\5 & 8 & 0.033333 \\6 & 3 & 0.012500 \\7 & 6 & 0.025000 \\8 & 10 & 0.041667 \\9 & 16 & 0.066667 \\10 & 24 & 0.100000 \\11 & 15 & 0.062500 \\12 & 9 & 0.037500 \\13 & 4 & 0.016667 \\14 & 8 & 0.033333 \\15 & 6 & 0.025000\end{array}$
-Referring to SCENARIO 15-5, a p control chart is to be made for these data.The upper control limit is _, and the lower control limit is _.

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Definitions:

Discount Factor(s)

A multiplicative factor used to determine present value of future cash flows, reflecting the time value of money and risk of the cash flows.

Straight-Line Depreciation

A technique for distributing the expense of a physical asset across its lifespan in uniform yearly sums.

Straight-Line Depreciation

A method of allocating an asset's cost evenly across its useful life, resulting in a consistent annual depreciation expense.

Simple Rate of Return

A calculation that measures the gain or loss on an investment over a specified period, expressed as a percentage of the investment's cost.