A Sample of Silicon Rejected for Use in an Electronic

question 1

Multiple Choice

A sample of silicon rejected for use in an electronic circuit has an impurity of boron at a level of 3 parts per trillion.What is the fraction of boron atoms in the silicon sample as written in scientific notation?

• A)3 x 10^-9
• B)3 x 10⁹
• C)3 x 10^-12
• D)3 x 10⁶

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Definitions:

Interval Data

A type of data that is measured along a scale, where the difference between values is meaningful, but there is no true zero point.

Nominal Data

Data classified into categories that cannot be ordered or ranked in any meaningful way.

Ordinal Data

A type of categorical statistical data representing order or rank, such as levels of satisfaction, without specifying the exact differences between ranks.

Null Hypothesis

A hypothesis that proposes there is no significant difference or effect and serves as the default assumption to be tested against an alternative.