Dynamic Random-Access Memory (DRAM) Memory Chips Are Made from Silicon

question 25

Multiple Choice

Dynamic random-access memory (DRAM) memory chips are made from silicon wafers in manufacturing facilities through a very complex process called wafer fabs. The wafers are routed through the fab machines in an order that is referred to as a recipe. The wafers may go through the same machine several times as the chip is created. The data file DRAM Chips contains a sample of processing times, measured in fractions of hours, at a particular machine center for one chip recipe. Compute the median processing time.

• A) 0.31 minutes
• B) 0.24 minutes
• C) 0.21 minutes
• D) 0.44 minutes

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Definitions:

Partial Correlation

A measure of the degree of association between two variables while holding one or more other variables constant.

Third Variable

An unmeasured variable that may influence or confound the relationship between the two variables of interest in a study.

Spearman Rank

An assessment of rank correlation that doesn't rely on parametric assumptions, used to evaluate how effectively a monotonic function can represent the association between two variables.

Ordinal-Level

Refers to a level of measurement where data can be ordered or ranked, but the distances between ranks are not necessarily equal.